Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

The world's most important buildings shrunk to a tiny size.

This one-time health resort was used by aristocrats around the world.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

Island wonderland for communist autocrats.

A musical instrument played by the sea.

This abandoned Slovenian military barracks has become a punky-political art squat.

The "dragon babies" of southeastern Europe.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

Where the lovelorn find a home for their sentimental keepsakes.

A forgotten monument to Yugoslavian freedom.

Humble beginnings for one of the world's most famous scientists.

This huge metal monument is slowly being stripped to its concrete skeleton.