France's national museum of scientific and industrial instruments.

The largest medical and anatomical collection in France lies hidden from the public.

An collection of Chinese propaganda posters from 1949 to 1979.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

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

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

A mythically themed self-built sculpture park.

A bizarre house filled with an astounding array of collections.

Micro-nation based around a nine-story high illegally built tower.

These spooky and unusual stone formations create an underworldly landscape.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A historic observatory precariously perched at the "Top of Europe."

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

The magic's in the hole!

The seamy, underground secrets of Portland's criminal past.

This 1,500-acre development hopes to be the Central Park of the South.

Abstract marble carving for an 8.5-pound rock.

A huge cathedral single-handedly constructed by one eccentric monk.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Real bones which are said to have belonged to a Polish dragon.

Rare and wonderfully wormy cadaver art captured in brass for centuries.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.