Postojna Cave is one of the most famous and spectacular caves in the world, located near the town of Postojna in southwestern Slovenia. It is a limestone karst cave system that spans approximately 24 kilometers (15 miles) of underground passages, chambers, and galleries. Postojna Cave is a natural wonder that attracts visitors from around the world.
Å kocjan Caves is a remarkable karst cave system located in southwestern Slovenia, near the town of DivaÄa. The caves are renowned for their vast chambers, underground rivers, and unique geological formations. The Å kocjan Caves were designated as a UNESCO World Heritage Site in 1986, recognizing their exceptional natural and cultural significance.