One of the original UNESCO World Heritage Sites, Poland's Wieliczka Salt Mine was one of the world's oldest continuously operating mines until workers ceased production in 2007. Now, Wieliczka is ...

DETROIT – If the residents of Detroit ever tried to dig a hole to China like I did when I was a kid, you probably wouldn’t have made it to China, but you might have eventually reached the secret salty ...

Deep beneath Romania lies a 1,000-year-old salt mine that has been transformed into something completely unexpected. Inside this underground world are ferris wheels, boats, mini-golf, and entire rooms ...

Hollywood costumes like the one worn by George Clooney in the 1997 Warner Bros. film "Batman and Robin” are stored 650 feet underground in a salt mine in Hutchinson, Kansas. Star archives One of the ...