Subterranea (geography)

For other uses, see Subterranea.

Subterranea are underground structures, both natural (such as caves) and human-made (such as mines).^[1]

Subterranean river in Castellet-lès-Sausses

Some subterranea and related topics include:

Natural

• Caves
  • Cenote
  • Ice cave
  • Sea cave
  • Sinkhole
• Karst
• Lava tube
  • Lunar and Martian lava tubes
• Subterranean river
• Subterranean waterfall
• Underground lake
• Volcanic pipe

Human-made or human-related by common function

Entrance to the underground vault of the Federal Reserve Bank of New York Building

Large underground Ancient Roman cistern in Chieti, Italy

The following is a list of examples of structures which are or can be underground.

• Civil defense
  • Air raid shelter
  • Blast shelter
  • Fallout shelter
  • Storm cellar
• Cultural heritage
  • Catacombs
  • Dungeon
  • Erdstall
  • Fogou
  • Hypogeum
  • Passage grave
  • Rock-cut architecture
    • Rock-cut tomb
• Disposal of corpses or religion:
  • Burial vault
  • Crypt
• Living
  • Basement
  • Cave dwelling
  • Dugout
  • Earth shelter
  • Underground city
• Maintenance
  • Manhole
  • Utility vault
• Extractive activities
  • Mine
  • Quarry
• Military
  • Bunker
  • Casemate
  • Foxhole
  • Missile launch facility
  • Spiderhole
  • Underground base
  • Underground hangar
• Storage
  • Bank vault
  • Root cellar
  • Wine cave
• Transport
  • Tunnel
    • Smuggling tunnel
  • Secret passage
  • Underground rapid transit system
• Water supply, wastewater or drainage
  • Dry well
  • Stepwell
  • Sewerage
  • Well
• Other or multiple functions
  • Borehole
  • Ventilation shaft

See also

• Boring (earth)
• Seattle Underground
• Subterranean London