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  • International Database and Gallery of Structures

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Structures in this category

  • entry with pictures
  • new entry (30 days)
  • updated entry (14 days)
# Name Country
1 Gotthard Base Tunnel Switzerland
2 Niagara Tunnel Canada

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Recently Added

Switzerland (2016), added on 30/07/2000

Recently Illustrated

Switzerland (2016)
1 new image added on 10/11/2020