Category
page 1Gypsum caves
Cave of the Crystals
cave in Mexico
Optymistychna Cave
gypsum cave in Ukraine
Orda Cave
cave in Russia
Saint-Léonard underground lake
lake in Saint-Léonard in the canton of Valais, Switzerland
Priest's Grotto
cave in Ukraine
Atlantida
cave in Ukraine

Barbarossa Cave
cave
Verteba
geological natural monument in Ternopil Oblast, Ukraine
Alabaster Caverns State Park
State park in Oklahoma, United States
Mlynky
geological natural monument in Ternopil Oblast, Ukraine
Heimkehle
The Heimkehle is one of two great gypsum caves in Germany that are accessible as show caves. It lies on the southern edge of the Harz Mountains between Rottleberode and Uftrungen, east of Nordhausen, right on the state border between Thuringia and Saxony-Anhalt. The cave may be visited as part of a 45-minute-long guided tour.