[Straight Vermonter]

Yes!

http://www.googobits.com/articles/2668-the-wielizka-mine-an-underground-cathedral-in-salt.html

Video here:

http://www.youtube.com/watch?v=LnhjKD4pezw

[maryz]

Wow! Thanks for the links! I can't believe I never even heard of it -- of course, I was a bit taken aback even by the mentions in the article of "green salt" and "bronze salt"; I never knew much beyond Morton's or Diamond Crystal.

Those carvings are wonderful, and the article said they were just done by anonymous miners! What amazing work!