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

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

The middle finger of modernity.

A curious collection dedicated to human and animal anatomy and pathology.

A former plague hospital turned medical museum.

The astonishing collection of an infamous criminologist.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

Two churches shoot bottle rockets at each others' bell towers in an unusual Easter celebration.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

This unique Renaissance castle was turned into a home for Nazi occultism.

The patron saint of spinsters grasps a container of dried blood.

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

Small museum dedicated to one of the founding fathers of modern astronautics.

Take black faced bears with giant clubs, white faced barbers wielding axes, hunters armed with shotguns, and mix in a lot of drinking.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

Statue of a decomposing prince that once held his heart in its hand.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

A spherical "micro-nation" in the heart of Vienna.

Northern Ireland's Brobdingnagian stepping stones.

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

Behemoth, cannon-like telescope operated by generations of Irish earls.

19th century tunnels burrowed under Liverpool.

The sign at the garden gate reads: "These Plants Can Kill."