Artfully arranged bones of 5,800 Austrians.

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

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

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

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

A cheeky architectural easter egg.

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

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

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

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

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

One of Ireland's most infamous prisons for rebels including men, women and children.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

How did a French journalist’s grave become the sexiest statue in the cemetery?

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Largest lake in Great Britain measured by surface area.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Protecting the dead from opportunistic body snatchers.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.