An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

An artist's mausoleum with a haunting echo.

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

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

Hungarian mummies in beautiful painted coffins.

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

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

The curious and tiny collection contains some very odd objects.

Isaac Newton's former home, where the famous apple tree still stands.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

A small town Romanian cemetery filled with darkly humorous gravestones.

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

18th century underground pilgrimage site, dedicated to a Saint that did something...

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

A charming flea market shop dedicated to retrofuturistic apparati.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A museum of carnival attractions where you are invited to ride the rides.

The curious underground history of keeping Paris clean.

Abandoned railway line circling the city of Paris.

The Egyptian-inspired last resting place of Lord Kilmorey.

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

The ancient tomb acts as a calendar that keeps perfect time.