Macabre astrological automaton clock dating to the late 1400s.

Stroll through a wonderland of stupendous moss-covered trees.

Enormous lake at the bottom of a unique cave system.

The world's largest collection of witchcraft regalia.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Continuing the tradition of the dime museum in style.

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

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

The only theatre in the world constructed specifically for sound movement.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A toxic ghost town sitting atop a massive coal fire.

A semi-scholarly approach to sex.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

The United States Capitol's former columns still stand.

This shop specializes in oddities and Victorian-inspired wonders.

A giant Troll lurks under one of Seattle's oldest bridges.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.