Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

Natural mummies hidden in the crypt of a medieval French church.

An art world insider finds himself battling for his artistic home.

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

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

A "simple-hearted artist" turned an isolated Icelandic valley into his own art museum.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

These concrete domes were installed on an Icelandic bluff to honor a very specific musical tradion.

Largest private bird collection in Iceland, formed from a tragic accident.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

This secluded Iceland farm holds the collected works of one rural sculptor's creations.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

These 17th-century mummies are no longer naturally preserved, but remain on display today.

This Italian pyramid is said to hold the mingled remains of the dead from both sides of the Battle of Novara.

This small chapel is built of human bones and decorated with a golden skeleton.

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

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

An ancient ossuary in Rouen.