Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A science teacher's dream.

Years of archaeology, just chillin' by the water cooler.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Medicinal spa created with the discharge from a geothermal energy plant.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Home to the most complete dodo remains known - one head, and one foot.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

The oldest working mechanical clock in the world.

A spiritual vortex among the red rocks in Sedona.

These aggressively sustainable art homes look like something out of 1970's science fiction.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The last bastion of Roman presence north of the Alps looms over a German town.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Home to three historic ships from the age of Vikings.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."