Error: Invalid JSON (<!DOCTYPE html> <html lang="en"> <head>

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SPARQL Query Service

Operation Failed:

An error occurred during query execution: HTTP Error: 400 Response: SPARQL-QUERY: queryStr= SELECT DISTINCT ?item ?file ?date ?label ?qualityLabel ?latitude ?longitude ?type ?subtype ?source WHERE { SERVICE wikibase:label {bd:serviceParam wikibase:language 'en'} { SELECT DISTINCT ?item ?file ?date ?label ?quality ?latitude ?longitude ?type ?subtype ?source WHERE { { SELECT DISTINCT ?item ?date ?file ?type ?subtype ?source (COALESCE(?label1,?label2) AS ?label) (SAMPLE (COALESCE(?latitude1,?latitude2)) AS ?latitude) (SAMPLE (COALESCE(?longitude1,?longitude2)) AS ?longitude) (SAMPLE(?qualitylist) AS ?quality) WHERE { {?item wdt:P180 wd:Q7435823} UNION {SERVICE wikibase:mwapi{ bd:serviceParam wikibase:api 'Generator' . bd:serviceParam wikibase:endpoint 'commons.wikimedia.org' . bd:serviceParam mwapi:gcmtitle 'Category:Scott's Grotto' . bd:serviceParam mwapi:generator 'categorymembers' . bd:serviceParam mwapi:gcmtype 'file' . bd:serviceParam mwapi:gcmlimit 'max' . ?title wikibase:apiOutput mwapi:title . ?pageid wikibase:apiOutput '@pageid' . } BIND (URI(CONCAT('https://commons.wikimedia.org/entity/M', ?pageid)) AS ?item) } OPTIONAL {?item rdfs:label ?label1 FILTER(LANG(?label1) = 'en')} ?item schema:url ?url. BIND (CONCAT('File:',wikibase:decodeUri(substr(str(?url),52))) AS ?file) BIND(REPLACE(REPLACE(?file, '^File:', ), '.[^.]*$', ) AS ?label2) OPTIONAL {?item wdt:P571 ?date} OPTIONAL {?item wdt:P6731 ?qualitylist} OPTIONAL { ?item p:P1259 ?position1. ?position1 psv:P1259/wikibase:geoLatitude ?latitude1a. ?position1 psv:P1259/wikibase:geoLongitude ?longitude1a. BIND(STR(?latitude1a) AS ?latitude1) BIND(STR(?longitude1a) AS ?longitude1) } OPTIONAL { ?item p:P9149 ?position2. ?position2 psv:P9149/wikibase:geoLatitude ?latitude2a. ?position2 psv:P9149/wikibase:geoLongitude ?longitude2a. BIND(STR(?latitude2a) AS ?latitude2) BIND(STR(?longitude2a) AS ?longitude2) } BIND(CONCAT('commons') AS ?type) BIND(CONCAT('image') AS ?subtype) BIND(CONCAT('Commons') AS ?source) FILTER ( STRENDS(LCASE(STR(?file)), '.jpg') || STRENDS(LCASE(STR(?file)), '.jpeg') ) } GROUP BY ?item ?date ?file ?label1 ?label2 ?latitude1 ?latitude2 ?longitude1 ?longitude2 ?type ?subtype ?source } } ORDER BY DESC(?quality) ASC(?date) LIMIT 10 } } GROUP BY ?item ?file ?date ?label ?qualityLabel ?latitude ?longitude ?type ?subtype ?source ORDER BY ASC(?date) java.util.concurrent.ExecutionException: org.openrdf.query.MalformedQueryException: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:206) at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(BigdataServlet.java:292) at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlQuery(QueryServlet.java:678) at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:275) at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:269) at com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doPost(MultiTenancyServlet.java:195) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655) at org.wikidata.query.rdf.blazegraph.throttling.ThrottlingFilter.doFilter(ThrottlingFilter.java:322) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.throttling.SystemOverloadFilter.doFilter(SystemOverloadFilter.java:84) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at ch.qos.logback.classic.helpers.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:50) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.QueryEventSenderFilter.doFilter(QueryEventSenderFilter.java:125) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.ClientIPFilter.doFilter(ClientIPFilter.java:43) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.JWTIdentityFilter.doFilter(JWTIdentityFilter.java:66) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.RealAgentFilter.doFilter(RealAgentFilter.java:33) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.RequestConcurrencyFilter.doFilter(RequestConcurrencyFilter.java:50) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:503) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) at java.lang.Thread.run(Thread.java:750) Caused by: org.openrdf.query.MalformedQueryException: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseQuery2(Bigdata2ASTSPARQLParser.java:404) at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:741) at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:695) at com.bigdata.rdf.task.ApiTaskForIndexManager.call(ApiTaskForIndexManager.java:68) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ... 1 more Caused by: com.bigdata.rdf.sail.sparql.ast.TokenMgrError: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilderTokenManager.getNextToken(SyntaxTreeBuilderTokenManager.java:3994) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.jj_ntk(SyntaxTreeBuilder.java:9637) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.RDFLiteral(SyntaxTreeBuilder.java:7189) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphTerm(SyntaxTreeBuilder.java:3893) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.VarOrTermOrTRefP(SyntaxTreeBuilder.java:8714) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphNodePath(SyntaxTreeBuilder.java:3786) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ObjectPath(SyntaxTreeBuilder.java:3467) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ObjectListPath(SyntaxTreeBuilder.java:3044) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.PropertyListPath(SyntaxTreeBuilder.java:2992) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.TriplesSameSubjectPath(SyntaxTreeBuilder.java:2919) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.TriplesBlock(SyntaxTreeBuilder.java:2321) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.BasicGraphPattern(SyntaxTreeBuilder.java:2097) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2034) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ServiceGraphPattern(SyntaxTreeBuilder.java:2534) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2370) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2459) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SubSelect(SyntaxTreeBuilder.java:416) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1965) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SubSelect(SyntaxTreeBuilder.java:416) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1965) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2056) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SelectQuery(SyntaxTreeBuilder.java:377) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Query(SyntaxTreeBuilder.java:328) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.QueryContainer(SyntaxTreeBuilder.java:216) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.parseQuery(SyntaxTreeBuilder.java:32) at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseQuery2(Bigdata2ASTSPARQLParser.java:336) ... 7 more

</body> </html>).

Scott's Grotto in Ware, Hertfordshire, is a Grade I listed building and with six chambers the most extensive shell grotto in the United Kingdom. "It is, although on a small scale, far more complex than Alexander Pope's at Twickenham. Compared with the grotto at Stourhead, on the other hand, it is minute, but that only enhances the enchantment." The surrounding gardens and structures are Grade II* listed.

MainTimelineWikipediaGalleryTableSearch

Wikimedia, Wikidata
shell grotto, United Kingdom,

Grade II listed building page^@
Grade II listed park and garden page^@
Grade II* listed building page^@
National Heritage List for England page^@
British Listed Buildings page^@
Grade I listed building page^@

Location: 51.8067, -0.0333, KML, Cluster Map, Maps,
48 places

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Camden Borough Control ⓘ
civil defence centre in London, UK
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
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
Hertford bunker ⓘ
Cold War control bunker in Hertford, UK
Kelvedon Hatch Secret Nuclear Bunker ⓘ
ROTOR air defence control bunker converted to a Regional Seat of Government
Lippitts Hill Anti-Aircraft Operations Room ⓘ
architectural structure in Waltham Abbey, Epping Forest, Essex, England, UK
Luton County Borough Control ⓘ
civil defence centre in Bedfordshire, UK
Mill Hill North West London Group Control ⓘ
civil defence centre in London
Oxgate Admiralty Citadel ⓘ
military bunker in north London, England: now privately owned
St Albans City and District Council Emergency Centre ⓘ
civil defence centre in Hertfordshire
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
Canal-Head Grotto ⓘ
grotto in Redbridge, London, England, UK
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 Lippittshill Lodge ⓘ
grotto in Waltham Abbey, Epping Forest, Essex, England, UK
Royston Cave ⓘ
Grade I listed building in North Hertfordshire, England, UK
Scott's Grotto ⓘ
Grade I listed building in Ware, East Hertfordshire, England, UK
The Grotto ⓘ
grotto in Redbridge, London, England, UK
Ashwell Quarry and Quarry Springs ⓘ
quarry in the UK
Barkway Chalk Pit ⓘ
Nature reserve in North Hertfordshire
Castle Lime Works Quarry ⓘ
Site of Special Scientific Interest in Hertfordshire
Hall's Quarry ⓘ
Site of Special Scientific Interest in Essex, England
Hexton Chalk Pit ⓘ
chalk quarry in the UK
Hill End Pit ⓘ
Nature reserve in North Hertfordshire
Moor Mill Quarry, West ⓘ
Site of Special Scientific Interest in Hertfordshire
Widdington Pit ⓘ
quarry in Essex, England, UK
Barnet Tunnel ⓘ
railway tunnel in the UK
Bell Common Tunnel ⓘ
road tunnel in Great Britain, part of M25 motorway
Belsize Tunnel ⓘ
railway tunnel in the UK
Hadley Wood North Tunnel ⓘ
railway tunnel in the UK
Hadley Wood South Tunnel ⓘ
railway tunnel in the UK
Highgate East Tunnel ⓘ
railway tunnel in the UK
Ponsbourne Tunnel ⓘ
railway tunnel in the UK
Watford Tunnels ⓘ
pair of railway tunnels in Hertfordshire, England
Welwyn North Tunnel ⓘ
railway tunnel in the UK
Welwyn South Tunnel ⓘ
railway tunnel in the UK
Weston Hills Tunnel ⓘ
road tunnel near the nature reserve
Watford West Tunnel ⓘ
one of a pair of railway tunnels in Hertfordshire, England
Copenhagen Tunnel ⓘ
Triple bore, six track railway tunnel linking London King's Cross, and Belle Isle.
Watford East Tunnel ⓘ
one of a pair of railway tunnels in Hertfordshire, England

1837-01-01T00:00:00Z

1837 Watford West Tunnel

1850-01-01T00:00:00Z

1850 Copenhagen Tunnel

1874-01-01T00:00:00Z

1874 Watford East Tunnel

{"selectable":false,"showCurrentTime":false,"width":"100%","zoomMin":100000000000}

Frameless

Type	Subtype	Date	Description	Notes	Source

link	page		Grade II listed building page^@		Wikidata
link	page		Grade II listed park and garden page^@		Wikidata
link	page		Grade II* listed building page^@		Wikidata
link	page		National Heritage List for England page^@		Wikidata
link	page		British Listed Buildings page^@		Wikidata
link	page		Grade I listed building page^@		Wikidata
site	bunker		Camden Borough Control	civil defense center, London Borough of Camden	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		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		Hertford bunker	bunker	Wikidata
site	bunker		Kelvedon Hatch Secret Nuclear Bunker	Royal Air Force station, military museum, bunker	Wikidata
site	bunker		Lippitts Hill Anti-Aircraft Operations Room	bunker	Wikidata
site	bunker		Luton County Borough Control	Bedfordshire County Council, civil defense center	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		Oxgate Admiralty Citadel	bunker	Wikidata
site	bunker		St Albans City and District Council Emergency Centre	St Albans City and District Council, civil defense center	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	cave		Canal-Head Grotto	grotto	Wikidata
site	cave		Grotto	grotto	Wikidata
site	cave		Grotto About 70 Metres North East Of Dancers Hill House	grotto	Wikidata
site	cave		Grotto At Lippittshill Lodge	grotto	Wikidata
site	cave		Royston Cave	grotto, cave	Wikidata
site	cave		Scott's Grotto	shell grotto	Wikidata
site	cave		The Grotto	grotto	Wikidata
site	mine		Ashwell Quarry and Quarry Springs	quarry	Wikidata
site	mine		Barkway Chalk Pit	chalk quarry	Wikidata
site	mine		Castle Lime Works Quarry	quarry	Wikidata
site	mine		Hall's Quarry	quarry	Wikidata
site	mine		Hexton Chalk Pit	chalk quarry	Wikidata
site	mine		Hill End Pit	chalk quarry	Wikidata
site	mine		Moor Mill Quarry, West	quarry	Wikidata
site	mine		Widdington Pit	quarry	Wikidata
site	tunnel		Barnet Tunnel	railway tunnel	Wikidata
site	tunnel		Bell Common Tunnel	road tunnel	Wikidata
site	tunnel		Belsize Tunnel	railway tunnel	Wikidata
site	tunnel		Hadley Wood North Tunnel	railway tunnel	Wikidata
site	tunnel		Hadley Wood South Tunnel	railway tunnel	Wikidata
site	tunnel		Highgate East Tunnel	railway tunnel	Wikidata
site	tunnel		Ponsbourne Tunnel	railway tunnel	Wikidata
site	tunnel		Watford Tunnels	Network Rail, London and North Western Railway, London, Midland and Scottish Railway, British Rail, London and Birmingham Railway, railway tunnel, Railtrack	Wikidata
site	tunnel		Welwyn North Tunnel	railway tunnel	Wikidata
site	tunnel		Welwyn South Tunnel	railway tunnel	Wikidata
site	tunnel		Weston Hills Tunnel	road tunnel	Wikidata
site	tunnel	1837	Watford West Tunnel	Network Rail, London and North Western Railway, London, Midland and Scottish Railway, British Rail, London and Birmingham Railway, railway tunnel, Railtrack	Wikidata
site	tunnel	1850	Copenhagen Tunnel	railway tunnel	Wikidata
site	tunnel	1874	Watford East Tunnel	London, Midland and Scottish Railway, British Rail, London and Birmingham Railway, railway tunnel, Railtrack, Network Rail, London and North Western Railway	Wikidata

Scott's Grotto

From Underfoot

Q7435823

SPARQL Query Service