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

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Unlock the secrets of the conjuring arts.

A semi-scholarly approach to sex.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

Japan's corrupt-mental-institution themed restaurant offers diners a chance to eat inside of filthy cells.

European castle ruins in an American state park are actually the product of death and grief.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Spanking machines, fake goats, and more devices of humiliation are on display in this museum of fraternal initiation devices.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

An urban forest overtakes what was the greatest failure of utopic urban housing.

An abandoned factory along the Mississippi coated by a giant mural.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.