5 Most Mysterious Underground Places In The World

What great mysteries lurk unseen beneath your very feet? Introducing underground caves, caverns, sinkholes and cities that are hiding ancient secrets…

What great mysteries lurk unseen beneath your very feet? Introducing underground caves, caverns, sinkholes and cities that are hiding ancient secrets…

Click image to view slideshow (navigate with < > keys)

Explore a compilation of the biggest, most mysterious underground places and holes on Earth, including Chauvet Cave and its strange cave art; Belize’s Actun Tunichil Muknal and its Mayan sacrifices; the medieval Erdstall of Europe; Turkey’s large abandoned underground city Derinkuyu; and the strange megalithic underground temple of Malta, the Hypogeum of Hal-Saflieni.

Subscribe to Dark5 on YouTube ► http://bit.ly/dark5
Follow Dark5 on Google+ ► http://bit.ly/Dark5GPlus
Like Dark5 on Facebook ► http://bit.ly/Dark5FB

Think you know more than Dark5? Add to this list. Use List.ly to Rank these underground places, Share more top mysterious caves, and Discuss here:

View List on List.ly