Explore: Underground Structures

Underground living refers to living below the ground's surface, whether in natural or manmade caves or structures (earth shelters). Underground dwellings

construction – Construction of structures on planetary surface Space architecture – Architecture of off-planet habitable structures Underground living – Living below

encompasses many modern structures, whereas the former more generally covers tunnel systems from ancient times to the present day. Underground cities are especially

separated the leaf-cushions, creating a broad, flat channel. The underground structures of Lepidodendron and similar lycopsid species known from the fossil

Subterranea are underground structures, both natural (such as caves) and human-made (such as mines). Some subterranea and related topics include: Caves

all parking structures have multiple parking levels. Parking structures may be heated if they are enclosed. Design of parking structures can add considerable

archaeologists to a type of underground structure associated mainly with the European Atlantic Iron Age. These structures appear to have been brought

seismic performance of underground structures: Underground structures suffer appreciably less damage than surface structures. Reported damage decreases with

projects during several millennia have formed extensive caves and underground structures in the zone. Over millennia, extreme geothermal pressure has helped

The London Underground (also known simply as the Underground or as the Tube) is a rapid transit system serving Greater London and some parts of the adjacent