Finding hidden treasure can bring glory, and often riches too. But sometimes treasure-hunting comes with a catch. 

From the homeowners that found a treasure in the walls of their new home to the metal detectorists who hid a Viking hoard from the authorities, these treasure-hunters – or sometimes treasure thieves – didn't hold onto their finds for long and soon had to give them back. Read on to see some of the priceless treasures that finders were forced to hand back. All dollar values in US dollars.