Only hotel where you can legally launder money.

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

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

A crumbling World War I fort that is reached through a series of concrete tunnels.

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

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