From royal jewels to vanished cities, uncover 20 of history’s most mysterious treasures still waiting to be found.

Lost treasure isn’t just the stuff of Hollywood blockbusters and adventure novels. Around the world, real fortunes in gold, ...

Another well-known case of thievery at the Louvre was in December of 1976, involving a diamond-studded sword that belonged to King Charles X. Three masked burglars broke into the museum and took the ...