The complex of tunnels was formed during the resistance war against French colonialists (1946-1948). Photo: Penwar |
“A museum contains photography and artefacts from the war and shows a propaganda film that's either disturbing or amusing depending on your mood. Bizarrely, a shooting range invites visitors to try an AK-47”, says the website. Photo: Innervietnam |
Rounding out of the list include Derinkuyu underground city, Turkey, Photo (Pakhnyushchyy.) |
Photo: Pakhnyushchyy |
Qing Dynasty tombs, China, Photo: Tarter |
Photo: Panoramio |
Mary King's Close, Scotland, Photo: Tony Marsh |
Photo: Paul Dodds |
RESO, Montreal, Photo: AlPetteway |
Photo: YvesMarcoux |
Capuchin catacombs, Italy, Photo: Traveltipy |
Photo: Pinterest |
Metro rail system, Moscow, Photo: LingxiaoXie |
Photo: Mordolff |
Salzwelten salt mine, Austria, Photo: Salzwelten |
Photo: Travelaway |
Sewer Museum, France, Photo: Flickr |
Photo: Huffpost |
Warwick Castle dungeons, England, Photo: Alamy |
Photo: Kaybee |
Salina Turda theme park, Romania, Photo: Alamy |
Photo: BI |