The sanctuary holds what was once believed to be the saint's incorruptible tongue.

The world's largest collection of intentionally useless inventions.

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

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

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

Volcanic irregularity? Odd erosion? Alien eggs? Local legends compete to explain these strange orbs.

Hear the quietest sound from across the dome.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Constantly maintained, this organ is playing a six-century long composition by John Cage.

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

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

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

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

The personal library of the founder of modern neurology is open to visitors.

One of the world's largest collections of pathological specimens.

Rebuilt remains of a temple to Roman god Mithras.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Eyam took steps to quarantine themselves and keep the plague from spreading.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Pagan monument converted to Christianity with the population.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

The astonishing collection of an infamous criminologist.