Paxton Tunnel

Disused railway tunnel in Crystal Palace, Upper Norwood

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Sydenham tunnel
railway tunnel, United Kingdom, 

• Subterranea Britannica page^@
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Location: 51.425, -0.0759, KML, Cluster Map, Maps,
141 places

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• 

  Park 20 ARP Bunker ⓘ
  ARP post in Blackheath Standard, Greenwich

• 

  Ashley Road Deep Shelter ⓘ
  air-raid shelter in Epsom, Surrey, UK

• 

  Bexley Emergency Centre ⓘ
  civil defence centre in London, UK

• 

  Boys' Air Raid Shelter at St John’s Primary School, Redhill ⓘ
  air raid shelter in Redhill, Surrey, England, UK

• 

  Camden Borough Control ⓘ
  civil defence centre in London, UK

• 

  Carshalton Park Air Raid Shelter ⓘ
  air-raid shelter in Carshalton, London

• 

  Cheam South West London Group Control ⓘ
  civil defence centre in London, UK

• 

  Chislehurst South East London Group Control ⓘ
  civil defence centre in London, UK

• 

  Clapham South deep level shelter ⓘ
  Deep shelter under Clapham South tube station

• 

  Dagenham Borough Control ⓘ
  civil defence centre in London, UK

• 

  Dartford Emergency Centre ⓘ
  civil defence centre in Kent

• 

  East Ham Borough Control ⓘ
  civil defence centre in London, UK

• 

  Edmonton Borough Control Site 1 ⓘ
  civil defence centre in London, UK

• 

  Edmonton Borough Control Site 2 ⓘ
  civil defence centre in London, UK

• 

  Finchley Borough Control ⓘ
  civil defence centre in London

• 

  Finsbury Borough Control ⓘ
  civil defence centre in

• 

  Hackney Air Raid Precaution Centre ⓘ
  air-raid shelter in Hackney, London, England, UK

• 

  Hackney WW2 ARP Control and Post War Borough Control ⓘ
  civil defence centre in London

• 

  Hayes Sub Area Control ⓘ
  civil defence centre in London

• 

  King William Street tube station ⓘ
  former C&SLR Station in Central London: the First Deep Level Tube Station

• 

  Lippitts Hill Anti-Aircraft Operations Room ⓘ
  architectural structure in Waltham Abbey, Epping Forest, Essex, England, UK

• 

  Merstham Anti-Aircraft Operations Room ⓘ
  British air defence bunker

• 

  Middlesex County Control ⓘ
  civil defence centre in

• 

  Mill Hill North West London Group Control ⓘ
  civil defence centre in London

• 

  Northolt Sub Control ⓘ
  civil defence centre in London

• 

  Oxgate Admiralty Citadel ⓘ
  military bunker in north London, England: now privately owned

• 

  Paddington Borough Control ⓘ
  civil defence centre in London

• 

  Paddock ⓘ
  alternative Cabinet War Room bunker for Winston Churchill

• 

  Pear Tree House ⓘ
  former nuclear control centre

• 

  Reigate Borough Emergency Centre and Surrey County Standby Emergency Centre ⓘ
  civil defence centre in Surrey

• 

  Richmond Borough Emergency Centre ⓘ
  civil defence centre in London

• 

  Southall London North West Group War HQ ⓘ
  civil defence centre in London

• 

  Southwark Borough Control ⓘ
  civil defence centre in London

• 

  St Leonard's Court Air Raid Shelter ⓘ
  air-raid shelter in Richmond upon Thames, London, England, UK

• 

  St Pancras Borough Control ⓘ
  civil defence centre in London

• 

  Stoke Newington Borough Control ⓘ
  civil defence centre in London

• 

  Stoke Newington Borough Control and Hackney Borough Control 2nd Site ⓘ
  civil defence centre in London

• 

  Stratford Newham Borough Council Control ⓘ
  civil defence centre in London

• 

  Tottenham Borough Control ⓘ
  civil defence centre in London

• 

  Tower Hamlets Borough Control ⓘ
  civil defence centre in London

• 

  Upminster Report Centre ⓘ
  WW2 civil defence centre in Upminster, London, England, UK

• 

  Uxbridge Anti-Aircraft Operations Room ⓘ
  British air defence bunker

• 

  Walton on Thames Sub Control ⓘ
  civil defence centre in Surrey

• 

  Woolwich Sub Control ⓘ
  civil defence centre in Woolwich

• 

  One Tree Hill Air Raid Shelter ⓘ
  WW2 civilian air raid shelter in Greenwich Park, London

• 

  St Leonard's Court ⓘ
  four-storey block of flats in East Sheen, London

• 

  Battle of Britain Bunker ⓘ
  Royal Air Force WWII operations room  

• 

  Coulsdon Deep Shelter ⓘ
  air-raid shelter in Coulsdon, Surrey, UK

• 

  Greenwich Borough Control Bunker 51C1 ⓘ
  Cold-war regional control bunker

• 

  Churchill War Rooms ⓘ
  museum in London  

• 

  Baron's Cave ⓘ
  cave in Reigate, Surrey, UK

• 

  Canal-Head Grotto ⓘ
  grotto in Redbridge, London, England, UK

• 

  Chislehurst Caves ⓘ
  chalk quarry tunnels in Chislehurst, Bromley, London

• 

  Grotto ⓘ
  grotto in Redbridge, London, England, UK

• 

  Grotto About 70 Metres North East Of Dancers Hill House ⓘ
  grotto in South Mimms, Hertsmere, Hertfordshire, England, UK

• 

  Grotto At High Elms Country Park ⓘ
  grotto in Bromley, London, England, UK

• 

  Grotto At Lippittshill Lodge ⓘ
  grotto in Waltham Abbey, Epping Forest, Essex, England, UK

• 

  Grotto In Grounds Of Hampton Court House ⓘ
  grotto in London Borough of Richmond upon Thames, London, England, UK

• 

  Grotto Including Steps And South Boundary Wall At 6 Monk's Walk, Reigate ⓘ
  grotto in Reigate and Banstead, Surrey, England, UK

• 

  Grotto Or Shell House In The Grounds Of Thames Eyot ⓘ
  grotto in London Borough of Richmond upon Thames, London, England, UK

• 

  Grotto To North End Of Lake In Claremont Landscape Garden ⓘ
  grotto in Elmbridge, Surrey, England, UK

• 

  Jack Cade's Cavern ⓘ
  cavern southeast of London

• 

  Pope's Grotto in Grounds of St Catherine's High School ⓘ
  structure in Twickenham, London Borough of Richmond upon Thames, United Kingdom

• 

  Reigate Caves ⓘ
  cave in the UK

• 

  The Grotto ⓘ
  grotto in Redbridge, London, England, UK

• 

  Grays Thurrock Chalk Pit ⓘ
  Site of Special Scientific Interest in Grays in Essex

• 

  Purfleet Chalk Pits ⓘ
  Site of Special Scientific Interest in Purfleet in Essex

• 

  Bankside–Charing Cross cable tunnel ⓘ
  utility tunnel in London, England, UK

• 

  Barnet Tunnel ⓘ
  railway tunnel in the UK

• 

  Belsize Tunnel ⓘ
  railway tunnel in the UK

• 

  Belvedere Crossing ⓘ
  proposed River Thames crossing in East London

• 

  Blackwall Tunnel (western) ⓘ
  western tunnel of Blackwall Tunnel

• 

  Bletchingley Tunnel ⓘ
  railway tunnel in the UK

• 

  Canal Tunnels ⓘ
  thameslink public works near St Pancras

• 

  Dartford Tunnel ⓘ
  tunnel beneath the River Thames, part of the Dartford Crossing

• 

  Dartford Tunnel (eastern) ⓘ
  

• 

  Dartford Tunnel (western) ⓘ
  

• 

  Deptford cable tunnel ⓘ
  utility tunnel in London, England, UK

• 

  Dorking Caves ⓘ
  tunnels in Dorking, Surrey, England, UK

• 

  Edenbridge Tunnel ⓘ
  railway tunnel in the UK

• 

  Elstree to St. John's Wood Cable Tunnel ⓘ
  power cable tunnel in north London

• 

  Euston Tunnel ⓘ
  twin-bore tunnel for HS2 railway

• 

  Gasworks Tunnel ⓘ
  East Coast Main Line section near King's Cross, London

• 

  Hadley Wood North Tunnel ⓘ
  railway tunnel in the UK

• 

  Hadley Wood South Tunnel ⓘ
  railway tunnel in the UK

• 

  Heathrow Airside Road Tunnel ⓘ
  tunnel at London Heathrow Airport

• 

  Heathrow Cargo Tunnel ⓘ
  road tunnel in Heathrow that serves London Heathrow Airport

• 

  Highgate East Tunnel ⓘ
  railway tunnel in the UK

• 

  Kingsway tramway subway ⓘ
  Camden, Greater London, WC1B

• 

  Limehouse Link tunnel ⓘ
  Road tunnel under Limehouse in East London

• 

  Maida Hill Tunnel ⓘ
  canal tunnel in the UK

• 

  Merstham tunnels ⓘ
  pair of railway tunnels at Merstham, Surrey, UK

• 

  Northolt tunnel ⓘ
  twin-bore tunnel for HS2 railway

• 

  Paxton Tunnel ⓘ
  Disused railway tunnel in Crystal Palace, Upper Norwood

• 

  Pedestrian Subway Under Crystal Palace Parade (That Part In London Borough Of Southwark) ⓘ
  subway in Bromley, Greater London, UK

• 

  Redhill Tunnel ⓘ
  railway tunnel in the UK

• 

  Sandilands Tunnel ⓘ
  former railway tunnel, now tram tunnel, in Croydon, London, UK

• 

  Sevenoaks Tunnel ⓘ
  railway tunnel in the UK

• 

  Silvertown Tunnel ⓘ
  road tunnel under the Thames

• 

  Snow Hill Tunnel ⓘ
  railway tunnel in London

• 

  South Kensington Subway ⓘ
  pedestrian tunnel in Kensington and Chelsea, London, England, UK

• 

  Strand Underpass ⓘ
  vehicle tunnel in central London connecting Waterloo Bridge to Kingsway near Holborn

• 

  Thames Water Ring Main ⓘ
  London water supply infrastructure

• 

  The Nursemaids' Tunnel ⓘ
  tunnel in Regent's Park, London, UK

• 

  Tower Subway ⓘ
  1870 tunnel under the Thames

• 

  Waterloo & City Line ⓘ
  London Underground line

• 

  Waterloo and Whitehall Railway ⓘ
  1860s partly constructed pneumatic railway in London, England

• 

  West Portal And Islington Tunnel (Regents Canal) ⓘ
  tunnel in Islington, London, England, UK

• 

  Woolwich foot tunnel ⓘ
  tunnel under the River Thames in East London

• 

  Eyre's Tunnel ⓘ
  short canal tunnel on the Regent's Canal that passes under Lisson Grove in St John's Wood, north London

• 

  Islington Tunnel ⓘ
  Tunnel on the Regent's Canal

• 

  Primrose Hill Tunnel ⓘ
  railway tunnel in Camden, Greater London

• 

  Thames Tunnel ⓘ
  tunnel beneath the River Thames in London

• 

  Copenhagen Tunnel ⓘ
  Triple bore, six track railway tunnel linking London King's Cross, and Belle Isle.

• 

  City & South London Railway tunnels ⓘ
  tunnel under Thames

• 

  Blackwall Tunnel ⓘ
  pair of road tunnels underneath the River Thames

• 

  Waterloo & City line tunnels ⓘ
  tunnel for Waterloo & City line under the Thames

• 

  Greenwich foot tunnel ⓘ
  tunnel under the river Thames in London

• 

  Northern Line (Bank branch) tunnels ⓘ
  tunnel carrying Northern Line under the Thames between London Bridge and Bank stations

• 

  Bakerloo line tunnels ⓘ
  tunnel carrying Bakerloo line under the Thames

• 

  Rotherhithe Tunnel ⓘ
  tunnel in London, England, UK

• 

  Barking cable tunnel ⓘ
  

• 

  Battersea exhaust tunnels ⓘ
  

• 

  Northern line (Charing Cross branch) tunnels ⓘ
  tunnels carrying the Northern Line under the Thames

• 

  Bankside Cable Tunnel ⓘ
  

• 

  Blackwall Tunnel (eastern) ⓘ
  eastern tunnel of Blackwall Tunnel

• 

  Victoria line tunnels ⓘ
  tunnels carrying Victoria line under the Thames

• 

  Rainham Creek Culvert ⓘ
  Culvert of Rainham Creek at River Thames outfall

• 

  Wimbledon – Pimlico cable tunnel ⓘ
  

• 

  Docklands Light Railway tunnel ⓘ
  tunnel under the Thames between Island Gardens and Cutty Sark stations

• 

  Isle of Dogs Jubilee line tunnels ⓘ
  tunnels carrying the Jubilee line under the Thames between Canary Wharf and North Greenwich stations

• 

  Jubilee Line Extension tunnels ⓘ
  tunnels carrying the Jubilee line under the Thames

• 

  Jubilee line tunnels ⓘ
  tunnels carrying the Jubilee line under the Thames between North Greenwich and Canning Town stations

• 

  Jubilee line tunnels ⓘ
  tunnels carrying the Jubilee line under the Thames between Canada Water and Canary Wharf

• 

  Battersea steam tunnel ⓘ
  

• 

  Dartford Cable Tunnel ⓘ
  tunnel in the United Kingdom

• 

  High Speed 1 tunnels ⓘ
  two tunnels between West Thurrock and Swanscombe

• 

  Docklands Light Railway tunnel ⓘ
  tunnel for Docklands Light Railway under Thames

• 

  Crossrail tunnels ⓘ
  tunnels carrying Crossrail under the Thames

• 

  King’s Cross Light Tunnel ⓘ
  artwork in King’s Cross, London

• 

  New Cross to Finsbury Market cable tunnel ⓘ
  utility tunnel in London, England, UK

1938-01-01T00:00:00Z

1946-01-01T00:00:00Z

1938 — 1946 One Tree Hill Air Raid Shelter

1938-01-01T00:00:00Z

1938-01-01T00:00:00Z

1938 St Leonard's Court

1939-08-01T00:00:00Z

1939-08-01T00:00:00Z

1939 Battle of Britain Bunker

1941-01-01T00:00:00Z

1941-01-01T00:00:00Z

1941 Coulsdon Deep Shelter

1954-01-01T00:00:00Z

1954-01-01T00:00:00Z

1954 Greenwich Borough Control Bunker 51C1

1984-01-01T00:00:00Z

1984-01-01T00:00:00Z

1984 Churchill War Rooms

1816-01-01T00:00:00Z

1816-01-01T00:00:00Z

1816 Eyre's Tunnel

1818-01-01T00:00:00Z

1818-01-01T00:00:00Z

1818 Islington Tunnel

1838-01-01T00:00:00Z

1838-01-01T00:00:00Z

1838 Primrose Hill Tunnel

1843-01-01T00:00:00Z

1843-01-01T00:00:00Z

1843 Thames Tunnel

1850-01-01T00:00:00Z

1850-01-01T00:00:00Z

1850 Copenhagen Tunnel

1890-01-01T00:00:00Z

1890-01-01T00:00:00Z

1890 City & South London Railway tunnels

1897-01-01T00:00:00Z

1897-01-01T00:00:00Z

1897 Blackwall Tunnel

1898-01-01T00:00:00Z

1898-01-01T00:00:00Z

1898 Waterloo & City line tunnels

1899-01-01T00:00:00Z

1899-01-01T00:00:00Z

1899 Greenwich foot tunnel

1900-01-01T00:00:00Z

1900-01-01T00:00:00Z

1900 Northern Line (Bank branch) tunnels

1906-01-01T00:00:00Z

1906-01-01T00:00:00Z

1906 Bakerloo line tunnels

1908-06-12T00:00:00Z

1908-06-12T00:00:00Z

1908 Rotherhithe Tunnel

1920-01-01T00:00:00Z

1920-01-01T00:00:00Z

1920 Barking cable tunnel

1920-01-01T00:00:00Z

1920-01-01T00:00:00Z

1920 Battersea exhaust tunnels

1926-01-01T00:00:00Z

1926-01-01T00:00:00Z

1926 Northern line (Charing Cross branch) tunnels

1940-01-01T00:00:00Z

1940-01-01T00:00:00Z

1940 Bankside Cable Tunnel

1967-08-02T00:00:00Z

1967-08-02T00:00:00Z

1967 Blackwall Tunnel (eastern)

1971-01-01T00:00:00Z

1971-01-01T00:00:00Z

1971 Victoria line tunnels

1976-01-01T00:00:00Z

1976-01-01T00:00:00Z

1976 Rainham Creek Culvert

1996-01-01T00:00:00Z

1996-01-01T00:00:00Z

1996 Wimbledon – Pimlico cable tunnel

1999-01-01T00:00:00Z

1999-01-01T00:00:00Z

1999 Docklands Light Railway tunnel

1999-01-01T00:00:00Z

1999-01-01T00:00:00Z

1999 Isle of Dogs Jubilee line tunnels

1999-01-01T00:00:00Z

1999-01-01T00:00:00Z

1999 Jubilee Line Extension tunnels

1999-01-01T00:00:00Z

1999-01-01T00:00:00Z

1999 Jubilee line tunnels

1999-01-01T00:00:00Z

1999-01-01T00:00:00Z

1999 Jubilee line tunnels

2000-01-01T00:00:00Z

2000-01-01T00:00:00Z

2000 Battersea steam tunnel

2005-01-01T00:00:00Z

2005-01-01T00:00:00Z

2005 Dartford Cable Tunnel

2007-01-01T00:00:00Z

2007-01-01T00:00:00Z

2007 High Speed 1 tunnels

2009-01-01T00:00:00Z

2009-01-01T00:00:00Z

2009 Docklands Light Railway tunnel

2014-01-01T00:00:00Z

2014-01-01T00:00:00Z

2014 Crossrail tunnels

2016-01-01T00:00:00Z

2016-01-01T00:00:00Z

2016 King’s Cross Light Tunnel

2017-01-01T00:00:00Z

2017-01-01T00:00:00Z

2017 New Cross to Finsbury Market cable tunnel

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Type	Subtype	Date	Description	Notes	Source
classes	subterranea	1971	British Tunnelling Society	subterranea, learned society, tunnel construction	Wikidata
link	page		Subterranea Britannica page@		Wikidata
organisation	business	1904	The Huelva Copper and Sulphur Mines	mining, business	Wikidata
organisation	organisation	1984	Historic England	restoration, non-departmental public body	Wikidata
site	bunker		Park 20 ARP Bunker	bunker	Wikidata
site	bunker		Ashley Road Deep Shelter	air-raid shelter	Wikidata
site	bunker		Bexley Emergency Centre	civil defense center, London Borough of Bexley	Wikidata
site	bunker		Boys' Air Raid Shelter at St John’s Primary School, Redhill	air-raid shelter	Wikidata
site	bunker		Camden Borough Control	civil defense center, London Borough of Camden	Wikidata
site	bunker		Carshalton Park Air Raid Shelter	air-raid shelter	Wikidata
site	bunker		Cheam South West London Group Control	civil defense center	Wikidata
site	bunker		Chislehurst South East London Group Control	civil defense center	Wikidata
site	bunker		Clapham South deep level shelter	bomb shelter, underground structure, London deep-level shelters, architectural structure, building	Wikidata
site	bunker		Dagenham Borough Control	civil defense center, London Borough of Barking and Dagenham	Wikidata
site	bunker		Dartford Emergency Centre	civil defense center, Dartford Borough Council	Wikidata
site	bunker		East Ham Borough Control	East Ham, civil defense center	Wikidata
site	bunker		Edmonton Borough Control Site 1	civil defense center, London Borough of Enfield	Wikidata
site	bunker		Edmonton Borough Control Site 2	civil defense center, London Borough of Enfield	Wikidata
site	bunker		Finchley Borough Control	civil defense center, London Borough of Barnet	Wikidata
site	bunker		Finsbury Borough Control	civil defense center, Metropolitan Borough of Finsbury	Wikidata
site	bunker		Hackney Air Raid Precaution Centre	air-raid shelter	Wikidata
site	bunker		Hackney WW2 ARP Control and Post War Borough Control	civil defense center, London Borough of Hackney	Wikidata
site	bunker		Hayes Sub Area Control	civil defense center, London Borough of Hillingdon	Wikidata
site	bunker		King William Street tube station	metro station, underground station, air-raid shelter, railway station	Wikidata
site	bunker		Lippitts Hill Anti-Aircraft Operations Room	bunker	Wikidata
site	bunker		Merstham Anti-Aircraft Operations Room	Royal Air Force, bunker	Wikidata
site	bunker		Middlesex County Control	civil defense center, Middlesex County Council	Wikidata
site	bunker		Mill Hill North West London Group Control	civil defense center, London Borough of Haringey, London Borough of Enfield, London Borough of Islington, London Borough of Camden, City of Westminster, London Borough of Barnet, City of London	Wikidata
site	bunker		Northolt Sub Control	civil defense center, London Borough of Ealing	Wikidata
site	bunker		Oxgate Admiralty Citadel	bunker	Wikidata
site	bunker		Paddington Borough Control	civil defense center	Wikidata
site	bunker		Paddock	bunker	Wikidata
site	bunker		Pear Tree House	Royal Borough of Greenwich, apartment building, civil defense center, London Borough of Lewisham, London Borough of Bromley, London Borough of Bexley, London Borough of Croydon, bunker	Wikidata
site	bunker		Reigate Borough Emergency Centre and Surrey County Standby Emergency Centre	civil defense center, Surrey County Council	Wikidata
site	bunker		Richmond Borough Emergency Centre	civil defense center, London Borough of Richmond upon Thames	Wikidata
site	bunker		Southall London North West Group War HQ	civil defense center, London Borough of Ealing	Wikidata
site	bunker		Southwark Borough Control	civil defense center, London Borough of Southwark	Wikidata
site	bunker		St Leonard's Court Air Raid Shelter	air-raid shelter	Wikidata
site	bunker		St Pancras Borough Control	civil defense center	Wikidata
site	bunker		Stoke Newington Borough Control	civil defense center	Wikidata
site	bunker		Stoke Newington Borough Control and Hackney Borough Control 2nd Site	civil defense center, London Borough of Hackney	Wikidata
site	bunker		Stratford Newham Borough Council Control	civil defense center, London Borough of Newham	Wikidata
site	bunker		Tottenham Borough Control	civil defense center	Wikidata
site	bunker		Tower Hamlets Borough Control	civil defense center, London Borough of Tower Hamlets	Wikidata
site	bunker		Upminster Report Centre	civil defense center	Wikidata
site	bunker		Uxbridge Anti-Aircraft Operations Room	Royal Air Force, bunker	Wikidata
site	bunker		Walton on Thames Sub Control	Elmbridge Borough Council, civil defense center	Wikidata
site	bunker		Woolwich Sub Control	civil defense center	Wikidata
site	bunker	1938	One Tree Hill Air Raid Shelter	destroyed building or structure, air-raid shelter	Wikidata
site	bunker	1938	St Leonard's Court	revenue house, air-raid shelter	Wikidata
site	bunker	1939	Battle of Britain Bunker	military museum, bunker	Wikidata
site	bunker	1941	Coulsdon Deep Shelter	air-raid shelter	Wikidata
site	bunker	1954	Greenwich Borough Control Bunker 51C1	Royal Borough of Greenwich, civil defense center	Wikidata
site	bunker	1984	Churchill War Rooms	national museum, biographical museum, military museum, architectural structure, bunker	Wikidata
site	cave		Baron's Cave	show cave	Wikidata
site	cave		Canal-Head Grotto	grotto	Wikidata
site	cave		Chislehurst Caves	show cave	Wikidata
site	cave		Grotto	grotto	Wikidata
site	cave		Grotto About 70 Metres North East Of Dancers Hill House	grotto	Wikidata
site	cave		Grotto At High Elms Country Park	grotto	Wikidata
site	cave		Grotto At Lippittshill Lodge	grotto	Wikidata
site	cave		Grotto In Grounds Of Hampton Court House	grotto	Wikidata
site	cave		Grotto Including Steps And South Boundary Wall At 6 Monk's Walk, Reigate	grotto	Wikidata
site	cave		Grotto Or Shell House In The Grounds Of Thames Eyot	grotto	Wikidata
site	cave		Grotto To North End Of Lake In Claremont Landscape Garden	grotto	Wikidata
site	cave		Jack Cade's Cavern	cavern	Wikidata
site	cave		Pope's Grotto in Grounds of St Catherine's High School	grotto	Wikidata
site	cave		Reigate Caves	sand mine, cave	Wikidata
site	cave		The Grotto	grotto	Wikidata
site	mine		Grays Thurrock Chalk Pit	chalk quarry	Wikidata
site	mine		Purfleet Chalk Pits	chalk quarry	Wikidata
site	tunnel		Bankside–Charing Cross cable tunnel	utility tunnel	Wikidata
site	tunnel		Barnet Tunnel	railway tunnel	Wikidata
site	tunnel		Belsize Tunnel	railway tunnel	Wikidata
site	tunnel		Belvedere Crossing	abandoned proposed road, road tunnel, proposed building or structure	Wikidata
site	tunnel		Blackwall Tunnel (western)	road tunnel	Wikidata
site	tunnel		Bletchingley Tunnel	railway tunnel	Wikidata
site	tunnel		Canal Tunnels	railway tunnel	Wikidata
site	tunnel		Dartford Tunnel	toll tunnel, road tunnel	Wikidata
site	tunnel		Dartford Tunnel (eastern)	road tunnel	Wikidata
site	tunnel		Dartford Tunnel (western)	road tunnel	Wikidata
site	tunnel		Deptford cable tunnel	utility tunnel	Wikidata
site	tunnel		Dorking Caves	tunnel	Wikidata
site	tunnel		Edenbridge Tunnel	railway tunnel	Wikidata
site	tunnel		Elstree to St. John's Wood Cable Tunnel	power cable, tunnel	Wikidata
site	tunnel		Euston Tunnel	proposed rail infrastructure, railway tunnel	Wikidata
site	tunnel		Gasworks Tunnel	railway tunnel	Wikidata
site	tunnel		Hadley Wood North Tunnel	railway tunnel	Wikidata
site	tunnel		Hadley Wood South Tunnel	railway tunnel	Wikidata
site	tunnel		Heathrow Airside Road Tunnel	road tunnel	Wikidata
site	tunnel		Heathrow Cargo Tunnel	road tunnel, Heathrow Airport Holdings Limited	Wikidata
site	tunnel		Highgate East Tunnel	railway tunnel	Wikidata
site	tunnel		Kingsway tramway subway	tramway tunnel	Wikidata
site	tunnel		Limehouse Link tunnel	road tunnel, TfL, road	Wikidata
site	tunnel		Maida Hill Tunnel	canal tunnel	Wikidata
site	tunnel		Merstham tunnels	railway tunnel	Wikidata
site	tunnel		Northolt tunnel	high-speed railway tunnel	Wikidata
site	tunnel		Paxton Tunnel	railway tunnel	Wikidata
site	tunnel		Pedestrian Subway Under Crystal Palace Parade (That Part In London Borough Of Southwark)	subway	Wikidata
site	tunnel		Redhill Tunnel	railway tunnel	Wikidata
site	tunnel		Sandilands Tunnel	tramway tunnel	Wikidata
site	tunnel		Sevenoaks Tunnel	railway tunnel	Wikidata
site	tunnel		Silvertown Tunnel	road tunnel	Wikidata
site	tunnel		Snow Hill Tunnel	railway tunnel	Wikidata
site	tunnel		South Kensington Subway	pedestrian tunnel	Wikidata
site	tunnel		Strand Underpass	road tunnel	Wikidata
site	tunnel		Thames Water Ring Main	water pipe, tunnel	Wikidata
site	tunnel		The Nursemaids' Tunnel	subway	Wikidata
site	tunnel		Tower Subway	pedestrian tunnel, tube railway, utility tunnel	Wikidata
site	tunnel		Waterloo & City Line	rapid transit railway line, ELR railway line section, subway tunnel, Southern Railway, TfL, London and South Western Railway	Wikidata
site	tunnel		Waterloo and Whitehall Railway	proposed rail infrastructure, abandoned project, tunnel	Wikidata
site	tunnel		West Portal And Islington Tunnel (Regents Canal)	canal tunnel, portal	Wikidata
site	tunnel		Woolwich foot tunnel	pedestrian tunnel, Royal Borough of Greenwich	Wikidata
site	tunnel	1816	Eyre's Tunnel	canal tunnel	Wikidata
site	tunnel	1818	Islington Tunnel	canal tunnel	Wikidata
site	tunnel	1838	Primrose Hill Tunnel	railway tunnel	Wikidata
site	tunnel	1843	Thames Tunnel	railway tunnel	Wikidata
site	tunnel	1850	Copenhagen Tunnel	railway tunnel	Wikidata
site	tunnel	1890	City & South London Railway tunnels	railway tunnel	Wikidata
site	tunnel	1897	Blackwall Tunnel	architectural structure, road tunnel	Wikidata
site	tunnel	1898	Waterloo & City line tunnels	railway tunnel	Wikidata
site	tunnel	1899	Greenwich foot tunnel	Greenwich London Borough Council, pedestrian tunnel	Wikidata
site	tunnel	1900	Northern Line (Bank branch) tunnels	railway tunnel	Wikidata
site	tunnel	1906	Bakerloo line tunnels	railway tunnel	Wikidata
site	tunnel	1908	Rotherhithe Tunnel	pedestrian tunnel, road tunnel	Wikidata
site	tunnel	1920	Barking cable tunnel	utility tunnel	Wikidata
site	tunnel	1920	Battersea exhaust tunnels	utility tunnel	Wikidata
site	tunnel	1926	Northern line (Charing Cross branch) tunnels	railway tunnel	Wikidata
site	tunnel	1940	Bankside Cable Tunnel	utility tunnel	Wikidata
site	tunnel	1967	Blackwall Tunnel (eastern)	road tunnel	Wikidata
site	tunnel	1971	Victoria line tunnels	railway tunnel	Wikidata
site	tunnel	1976	Rainham Creek Culvert	buried watercourse	Wikidata
site	tunnel	1996	Wimbledon – Pimlico cable tunnel	utility tunnel	Wikidata
site	tunnel	1999	Docklands Light Railway tunnel	railway tunnel	Wikidata
site	tunnel	1999	Isle of Dogs Jubilee line tunnels	railway tunnel	Wikidata
site	tunnel	1999	Jubilee Line Extension tunnels	railway tunnel	Wikidata
site	tunnel	1999	Jubilee line tunnels	railway tunnel	Wikidata
site	tunnel	1999	Jubilee line tunnels	railway tunnel	Wikidata
site	tunnel	2000	Battersea steam tunnel	utility tunnel	Wikidata
site	tunnel	2005	Dartford Cable Tunnel	utility tunnel, National Grid Electricity Transmission	Wikidata
site	tunnel	2007	High Speed 1 tunnels	railway tunnel	Wikidata
site	tunnel	2009	Docklands Light Railway tunnel	railway tunnel	Wikidata
site	tunnel	2014	Crossrail tunnels	railway tunnel	Wikidata
site	tunnel	2016	King’s Cross Light Tunnel	subway tunnel, pedestrian tunnel, installation artwork	Wikidata
site	tunnel	2017	New Cross to Finsbury Market cable tunnel	utility tunnel	Wikidata