The abandoned ruins of a beautiful medieval castle just outside Barcelona.

Two stunning 17th-century libraries and a cabinet of curiosities.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

Occult books, tarot, oddities.

The word 'wunderkammer' translates as 'wonder-chamber'. This Wunderkammer is both a museum and a retail store.

Australia's largest medical museum featuring a 19th-century pharmacy.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.