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Postojna is a town in the traditional region of Inner Carniola, in southwestern Slovenia. It is well-known for its Postojna Cave, one of the largest karst cave systems in the world, which is over 24,000 meters long. The cave is a major tourist attraction, receiving thousands of visitors each year who come to explore its stalactites, stalagmites, and unique subterranean ecosystem. Postojna also boasts a quaint town center with historical buildings, museums, and a variety of outdoor activities such as hiking and cycling in the nearby forests. The town is also known for the Predjama Castle, built within a cave mouth and located about 9 km from Postojna.


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Points of interest

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Postojna Cave

This karst cave is one of the largest in Europe and hosts an underground railway that takes visitors through the caverns. The cave is also home to a large amount of wildlife, including the proteus, blind white salamanders that are unique to the region.

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Predjama Castle

This 15th-century castle is located on a 123-meter high cliff and can only be accessed via a drawbridge. The castle was originally built as a refuge for a robber knight and features a series of secret passages and hidden chambers.