A unrivaled and rather horrifying collection of wax dermatological models.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

This massive library holds what was once the largest book collection in the world.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

France's national museum of scientific and industrial instruments.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A museum in the childhood house of a medical pioneer.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

This annual Belgian water race attracts bathtub captains from all over the world.

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

Dummies recreate radiological discoveries from history.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Medical history with an amazing, if frighting, collection of wax diseases on display.