Massive underground structures no one knows about! #underground #undergroundcity #undergroundstructures VIDEO CHAPTERS:
00:00 Intro
00:07 The Slănic Prahova Salt Mine, Romania
01:04 InterContinental Shanghai Wonderland
01:40 Özkonak Underground City, Turkey
02:27 The Billionaire's Bunker, Czechia (The Oppidum)
03:26 Salina Turda, Romania
04:20 Russia's Secret Arctic Tunnel System
05:29 Matmata, Tunisia
06:36 Orvieto, Italy
07:08 Cusco, Peru
07:50 Hospital Cave, Vịnh Mốc, Vietnam
09:10 Mines and Catacombs of Paris, France
10:06 Boulby Underground Laboratory, UK
11:00 Gibraltar Stay-Behind Cave Complex
11:49 Lalibela Underground Churches, Ethiopia
12:35 Cu Chi Tunnels, Vietnam
13:27 Diefenbunker, Canada
14:05 Kelvedon Hatch Secret Nuclear Bunker, UK
14:50 Metro-2, Russia
15:56 Third Infiltration Tunnel, Korean DMZ
16:48 Zipaquirá Salt Cathedral, Colombia
17:52 Temples of Humankind, Damanhur, Italy
18:45 Odessa Catacombs, Ukraine
19:42 Kome Caves Village, Lesotho
20:25 Outro
We do not own the clips/images in this video. All rights go to their respective owners. This video follows Fair Use under Section 107 of the Copyright Act (1976) for purposes like criticism, commentary, and education.
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