In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

When this test site was abandoned, they didn't even bother to take the rocket with them.

Where monkeys run wild and the humans are caged.

Stay in a room with a view... of the bottom of the ocean.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

An underwater road considered a possible Atlantis location.

A steamer run aground near Bimini lives a second life as a playground for scuba divers.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

The hottest place on the planet.

Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

A yoga studio and venue for "chill-out parties" in a former chicken slaughterhouse.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

A massive art collective tries a new take on Brooklyn's DIY music scene—by making it fully legal.

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

Check out the underground party scene at the "Burning Man of Brooklyn."

An eerie, derelict amusement park in Berlin.

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.