underground structure

An underground structure is a man-made construction built below the earth’s surface to provide space, protection, or support for various human activities or infrastructure.

Observed surface forms (15)

• air-raid shelter ×3
• tunnel complex ×2
• underground mine ×2
• air raid shelter complex ×1
• catacomb complex ×1
• catacombs ×1
• underground bunker ×1
• underground church ×1
• underground facility ×1
• underground museum ×1

• underground religious complex ×1
• underground shopping mall ×1
• underground utility network ×1
• underground weapons factory ×1
• water tunnel ×1

Instances (19)

• Gjøvik Olympic Cavern Hall
• Catacombs of Kom El Shoqafa via concept surface "catacombs"
• Catacombs of Rome via concept surface "catacomb complex"
• Zipaquirá Salt Cathedral area via concept surface "underground religious complex"
• Consolidated Gold Mine (tourist site) via concept surface "underground mine"
  surface form: Consolidated Gold Mine
• Croton Water Filtration Plant via concept surface "underground facility"
• New York City distribution tunnels via concept surface "underground utility network"
• Vorbunker via concept surface "air-raid shelter"
• Carrousel du Louvre via concept surface "underground shopping mall"
• Shandaken Tunnel via concept surface "water tunnel"
• Standedge tunnels via concept surface "tunnel complex"
  surface form: Standedge Tunnels
• Mittelwerk underground factory via concept surface "underground weapons factory"
• Stockport Air Raid Shelters via concept surface "air raid shelter complex"
• Malinta Tunnel via concept surface "tunnel complex"
• St Kinga’s Chapel (in the salt mine) via concept surface "underground church"
  surface form: St Kinga’s Chapel
• Wieliczka Salt Mine Museum via concept surface "underground museum"
• El Teniente mine via concept surface "underground mine"
• Anderson shelters via concept surface "air-raid shelter"
  surface form: Anderson shelter
• Morrison shelters via concept surface "air-raid shelter"
  surface form: Morrison shelter