For over 300 years this little carving has been the city’s good luck charm.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This massive library holds what was once the largest book collection in the world.

France's most famous cemetery, with some of its most curious tombs.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A stunning 18th century pharmacy and medieval chemist's collection.

17th century palace once a meeting place for politicians.

The vast, legendary catacombs hold secrets much stranger than stacked bones.