A collection of artworks exclusively created by the mentally ill that was almost burned by Nazi culture police.

The subtle science of a master molecular gastronomist.

A semi-scholarly approach to sex.

A museum of magic with a Sadist past.

An intricately decorated tiny place of worship.

A modern zoetrope on the New York City subway.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

An explosion of natural color known as "the river that ran away from paradise."

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

These pretty kitties killed and ate as many as 135 railway workers.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Eighteen miniature death-scene dioramas.

“You better take care of me Lord, if you don't you're gonna have me on your hands.” ― Hunter S. Thompson, Fear and Loathing in Las Vegas.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

BDSM, 1930s Style.

An extraordinary collection of 18th century anatomical waxworks.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

This innocuous-seeming building is actually the remnant of a major wartime brothel.

Olfactory delights in San Francisco's Botanical Gardens.

Peek through a transparent pyramid and drink in the mountain made of books.