Cool and Unusual Things to Do in Postojna - Atlas Obscura

Unusual Attractions in Postojna

Postojna, Slovenia

Postojna Caves

A miniature train-ride through Slovenia's largest cave system.

Postojna, Slovenia

Olm

The "dragon babies" of southeastern Europe.

Are we missing something unusual in Postojna?

Predjama, Slovenia

Predjama Castle

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

5 miles from Postojna

Borovnica, Slovenia

Soteska Pekel (Hell Gorge)

Apparently, Hell has waterfalls in Slovenia.

10 miles from Postojna

Matavun, Slovenia

Skocjan Caves

This massive subterranean fissure is known as the "underground Grand Canyon."

13 miles from Postojna

Idrija, Slovenia

Idrija Mercury Mine

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

18 miles from Postojna

Borgo Grotta Gigante, Italy

Grotta Gigante

One of the largest caves in the world open to the public.

21 miles from Postojna

Want to see fewer ads? Become a Member.

Atlas Obscura Trips

Forest to Table in Alpine Slovenia

Alongside local experts, we'll munch our way through Slovenia's stunning alpine pastures, forests, and lakes—gathering wild foods, making mountain tea, and crafting a charismatic cheese.

Explore Postojna, Slovenia

Launch Map

Postojna Leaderboard

Places Added

Join the Ranks!

Add an unusual place to Postojna.

Places Edited

Places Visited

Recent Postojna Activity

gelovalle has been to Postojna Caves

ihavethe45 wants to go to Postojna Caves

alfran has been to Olm

alfran has been to Postojna Caves

Dale Hicks wants to go to Postojna Caves