The underground salt kingdom that became one of Europe’s strangest attractions

By Sadie Andrew, CNN Wieliczka, Poland (CNN) — Down at the bottom of 380 dizzying steps, the walls are an imperfect gray. They look like rock — but they taste salty. How do visitors know? They’re encouraged to lick them. Just to the southeast of Krakow, Poland’s second-largest city, lies the underground realm of the