What on Earth?
Hidden Tomb of Genghis Khan
TV-PG
S2 • E6 Mar 1, 2016 44m6.2
A strange structure is found in the heartlands of Mongolia. Is it the lost tomb of Genghis Khan? Bizarre rings in Spain could lead to the lost city of Atlantis. A huge floating island is on a collision course with New Zealand. Just what on earth are they?
