This is located in Wieliczka, Poland and is a truly incredible sight to see.
To find out more, use the link below.
http://giaskyler.wordpress.com/2012/12/30/wieliczka-salt-mines-poland/
To find out more, use the link below.
http://giaskyler.wordpress.com/2012/12/30/wieliczka-salt-mines-poland/