A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

This abandoned Greek island was the last active leper colony in Europe.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Walk 2,300 feet above the ground on the "Troll's Tongue."

One of the most important yet well-hidden museums dedicated to the history of medicine.

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

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

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

The personal charnel house of Anton Bruckner.

Mysterious painted skulls in Moravia.

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

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

This German bone house contains the remains of some 20,000 souls.

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

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

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

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.