Thursday, August 22, 2019

Living in underground human worlds (video)

Interesting Facts, Aug. 20, 2019; Wisdom Quarterly


You Won't Believe This Underground City Still Exists
It would seem in this modern-day and age that we humans like to build things that reach the sky. However, it goes without saying that humans have probably lived underground and in caves since ancient times to escape harsh weather and other things such as invading armies, building downward deep intricate tunnels, waterways, and entire underground cities that amaze. From ancient underground cities, nuclear bunkers, and modern marvels of construction, check out the most insane underground cities in the world.
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  • #cities #undeground #city #development #building #buildings

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