Interesting facts At a depth of 135 meters, a medical center located inside a salt mine in Poland uses the underground microclimate to treat patients with asthma, allergies, and chronic airway diseases. Noel Budeguer 20/04/2026 at 21:25
Interesting facts Descend 380 Steps Underground and Reach Europe’s Strangest Subterranean Kingdom, Where People Lick the Walls, Welcomes 9,000 Visitors a Day, Has 240 km of Tunnels, 9 Levels, and Is Over 300 Meters Deep; Discover the Wieliczka Salt Mine Romário Pereira de Carvalho 22/02/2026 at 09:22
