A subterranean house of worship carved right out of the bedrock.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Museum preserving torture methods from the past.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

Self-mummified monk who wears sunglasses and has become a gecko hatchery.

Mummified monks and the accidentally interred, in a 17th-century crypt.

An Austrian house of bones filled with hundreds of intricately painted skulls.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

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

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

Europe's second largest ossuary wasn't discovered until 2001.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

This former insane asylum now holds a pathological anatomy museum.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The last permanent exhibit dedicated to the Soviet leader.

This honeycomb-textured tafone looks like a petrified troll head.

The site of the climactic scene from the classic horror film is now a historic landmark.