15 Places HIDDEN INSIDE Mountains

Mountains look solid from the outside — giant walls of stone that seem impossible to enter. But hidden behind cliffs, tunnels, and secret doors are places most people will never see. Some were carved by ancient civilizations, some were built for war, and others are so deep inside the rock that entire cities, temples, vaults, and military bases can disappear from the world above. These are 15 places hidden inside mountains. #place #places #hidden #secrets #mountain #mountains Several segments are licensed under creative commons https://creativecommons.org/licenses/by/3.0/legalcode For more video information, please visit our website. The Top Fives show brings you informational and entertaining top five videos! Join us and subscribe for more. Follow Josh on Instagram! Founder and producer of the Top Fives show. Stay up to date with the channel and everything YouTube and business related! https://instagram.com/joshuajosephbaker Follow us on Facebook! https://facebook.com/topfivesyoutube Contact us via the email form here: https://www.youtube.com/topfives/about Note: The videos featured on the Top Fives channel are for educational and informational purposes. If you have a good idea for a video, leave us a comment! We try to read each and every comment made.