Bärenloch Cave ⓘ archaeological site in Tecknau in the canton of Basel-Landschaft, Switzerland
Bruderloch ⓘ cave in Wenslingen in the canton of Basel-Landschaft, Switzerland
Erdmannshöhle ⓘ cave in Germany
Käsloch, paleolithic living cave ⓘ archaeological site in Winznau in the canton of Solothurn, Switzerland
Müliloch, paleolithic rock shelter settlement ⓘ archaeological site in Starrkirch-Wil in the canton of Solothurn, Switzerland
Tschamberhöhle ⓘ cave in Germany
Unknown ⓘ
Badener Christus-Steinbruch ⓘ
Chalchofen, Neolithic flint mine ⓘ archaeological site in Olten and part of an archaeological ensemble in the canton of Solothurn, Switzerland
Chalofen, roman-new age underground quarry ⓘ archaeological site in Villnachern in the canton of Aargau, Switzerland
Dorfstrasse / Chalchofen, Neolithic flint mine ⓘ archaeological site in Wangen bei Olten and part of an archaeological ensemble in the canton of Solothurn, Switzerland
Neolithic flint mine of Olten and Wangen ⓘ Archaeological site and archaeological ensemble in Olten and Wangen bei Olten in the canton of Solothurn, Switzerland
Tongrube Frick ⓘ
Mining museum Herznach ⓘ museum in Herznach (AG), Switzerland
Adlertunnel ⓘ
Baregg Tunnel ⓘ
Belchen Tunnel ⓘ tunnel
Bözberg Rail Tunnel ⓘ railway tunnel in the Swiss canton of Aargau
Bözberg Road Tunnel ⓘ motorway tunnel in the Swiss canton of Aargau
Eppenbergtunnel ⓘ railway tunnel
Fahrnau Tunnel ⓘ disused railway tunnel near Schopfheim, Germany
Hauenstein base tunnel ⓘ
Hauenstein summit tunnel ⓘ
Heidenäcker Tunnel ⓘ road tunnel of the A 98 motorway in Lauchringen, Germany
Heitersbergtunnel ⓘ
Hepschinger Tunnel ⓘ
Seeloch, modern water gallery ⓘ archaeological site in Seewen in the canton of Solothurn, Switzerland
Tüllinger Tunnel ⓘ railroad tunnel in Weil am Rhein