Elaborately detailed from a single sheet of gold, the Mask of Agamemnon is one of the most iconic and controversial discoveries of Ancient Greece; experts investigate if this relic could prove the existence of a mythical king.

An ancient tablet discovered on the remote reaches of Easter Island is etched in a mysterious glyph system that has yet to be deciphered; experts use cutting-edge tech to determine if this wooden relic could be the key to a lost civilization.