Mladeč caves
The Mladečské Caves (Mladečské jeskyně) are a cave complex in the municipality of Mladeč in the Czech Republic. It is located in the Třesín National Nature Monument within the Litovelské Pomoraví Protected Landscape Area. The complex labyrinth of fissure corridors and caves can be found inside the calcite hill of Třesín. The underground spaces are decorated with stalactites, stalagmites and sinters. Its highlights include "Nature's Temple" and the "Virgin Cave".
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).