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

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Historic medieval fortified city in southwest France.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Microscopic scenes; some call it novelty, some call it art.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Real bones which are said to have belonged to a Polish dragon.

An underground city of salt.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Christ's blood preserved in a Belgian town.

This ghost town in Belgium will lose its street art when it ceases to exist.

A former plague hospital turned medical museum.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

A church of bones, decorated with 40,000 human skeletons.