Cities Beneath the Earth | The UnXplained (S2, E5)

Despite all of our modern technology and sophistication, there is much that we still don't know about what lies beneath our feet, deep underground. What is at the center of the Earth? See more in Season 2, Episode 5, "The Underground World." Find out more about the show and watch full episodes on...

42 min - Archaeology & Mysteries - HISTORY

More: Lost Cities documentaries

Read Deeper: Lost Cities

1. The Lost City of Z by David Grann (3.8/5) - View on Amazon
2. The Lost City of the Monkey God by Douglas Preston (3/5) - View on Amazon
3. Turn Right at Machu Picchu by Mark Adams - View on Amazon
4. Lost Cities of the Ancient World by Paul G. Bahn - View on Amazon

Watch Next

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