A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

This monumental neo-Renaissance tomb in Vyšehrad Cemetery is the final resting place for Czech cultural legends.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A crucified and bearded female saint.

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

Mysterious painted skulls in Moravia.

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

An enormous and lavish Gothic church in Czechia.

A house of bones — but nobody is quite sure to whom they belong.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

In the quiet village of Fulmodeston, the ruins of a medieval church remain hidden among vines and foliage.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

A multi-story, retro videogame time capsule in the Netherlands.

An independent cinema housed in a former pathological anatomy laboratory.

A dead saint, a deadly poison, and a mysterious holy ooze.

This luscious masterpiece created by landscape designer Bevis Bawa inspired the work of his brother, a famous Sri Lankan architect.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This ancient cave temple complex is the largest and best-preserved temple complex in Sri Lanka.

A Bohemian "anti-hotel" offers off-kilter stays in Sri Lanka.

This elaborate temple was built around one of the Buddha's teeth.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.