Ancient Underground Cities on the Territory of Historical Armenia

Ancient Underground Cities on the Territory of Historical Armenia

On November 8, 2017, the “VIASAT HISTORY” TV channel broadcast the “Incredible inventions” program. One of its topics was the invention and use of concrete. Apparently, concrete was first used in building during the construction of underground tunnels on the territory of modern Turkey approximately 8000 years ago. In the “Tore zur Unterwelt” book, German …

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