This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

Like something out of a bad acid trip, this Ukraine hallway has been covered in hallucinatory phantasmagoria.

One of the world's largest collections of medieval religious art.

This attraction was abandoned after the Chernobyl disaster.

This street has over a half-dozen names, all at once.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

Most famous work of one of Frank Lloyd Wright's sons.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.