From lost pieces of media to irreplaceable works of art to literal pirate booty, these are the amazing and tragic stories behind valuables that seem to be gone forever.
When an American writer stumbled across Leonardo Da Vinci’s masterpiece Lady with an Ermine while visiting Kraków a few years ago she was so surprised one of the world’s most renowned and valuable paintings was in the city that she had to find out how it arrived there.
From the the Ark of the Covenant to the crown jewels of Ireland to a 333-carat pink diamond, here are 30 of the world s most valuable (and missing) treasures.