This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

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

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

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

This historic floating crane became an unlikely symbol of the port of Trieste.

A musical instrument played by the sea.

Built as an anti-fascist tribute, this surreal Yugoslav memorial became an unwelcome symbol after the Croatian war for independence.

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

Yugoslavia's biggest underground airport lies in ruins.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.