What could be hidden in these cities?
➨Get tickets to the best show on earth!!! http://bit.ly/2skdZ9n
►Subscribe for more videos! http://bit.ly/1Mo6FxX
►Check out my food channel! http://bit.ly/1hsxh41
★↓FOLLOW ME ON SOCIAL MEDIA!↓★
Facebook Show Page: https://www.facebook.com/beyondsciencetv
Facebook Mike Fan Page: http://on.fb.me/1En9Lue
Instagram: http://instagr.am/Mikexingchen
http://instagr.am/beyondsciencetv
Twitter: http://twitter.com/Mikexingchen
Snapchat: Mikeychenx
Periscope: Mikexingchen
✉ Send stuff to our PO Box!
Mike Chen
PO Box 610 Middletown, NY 10940
————————
♩ ♫
SOURCES:
http://www.history.com/news/history-lists/8-mysterious-underground-cities
http://www.messagetoeagle.com/11-mysterious-ancient-underground-worlds-that-remain-unsolved-to-this-day/
https://en.wikipedia.org/wiki/Wieliczka_Salt_Mine
http://www.ancient-origins.net/ancient-places-europe/timeless-stories-built-grains-salt-examining-masterpieces-within-polish-salt-020903
http://www.ancient-origins.net/ancient-places-africa/rock-hewn-churches-lalibela-ethiopia-00154
http://www.ancient-origins.net/ancient-places-europe/underground-city-naours-subterranean-settlement-complete-bakeries-and-chapels-021398?nopaging=1
Derinkuyu: The Tumultuous History of Turkey’s Underground City
https://www.ancient-code.com/15-things-you-should-know-about-the-underground-city-of-derinkuyu/
http://www.nationalgeographic.com/archaeology-and-history/archaeology/lost-city-petra/
http://www.ancient-origins.net/ancient-places-africa/magnificent-ancient-city-petra-jordan-00214?nopaging=1
https://en.wikipedia.org/wiki/Petra