Edison's Electric Pen, Vanishing Carroll Deering, Lizard Man

The Thomas Edison National Historical Park in West Orange New Jersey displays a failed gadget of the famed inventor that went on to leave a surprising and permanent mark. At the Graveyard of the Atlantic Museum, visitors can discover a bell recovered from a ship whose crew mysteriously vanished without a trace. And at the South Carolina Cotton Museum an unusual cast footprint tells the tale of a mutant creature that left a community paralyzed by fear.For even more Mysteries at the Museum, head to discovery+. Go to discoveryplus.com/mystery to start your 7-day free trial today. Terms apply.