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

Some subterranea and related topics include:

Natural [ edit ]

• 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 related [ edit ]

• Borehole
• Bunker
• Burial vault (tomb)
• Casemate
• Catacombs
• Cave dweller , Underground living
• Cave temple
• Cellar
• Dungeon
• Dugout (shelter)
• Fogou
• Hypogeum
• Mine
• Rock cut architecture , rock-cut tomb
• Smuggling tunnel
• Tunnels (street tunnel, train tunnels)
• Underground city , umbrella article for underground dwellings and facilities
• Underground rapid transit system
• Wine cave

See also [ edit ]

• Boring (earth)
• Seattle Underground
• Subterranean London

References [ edit ]

This article about geography terminology is a stub . You can help Wikipedia by expanding it .

• v
• t
• e