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

An enormous and lavish Gothic church in Czechia.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A saintly relic hidden in a Prague church basement.

A surreal statue honoring Prague's favorite literary son.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This subterranean necropolis holds three floors of antler-dug grave caves.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

Ancient mysterious ruts carved in the bedrock.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

Pop culture has helped to keep this iconic British building from being destroyed.

A cluttered and astounding collection of antiquities and curiosities.

Hear the quietest sound from across the dome.

One part local history, 99 parts gruesome haunted house.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.