An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

These fantastically named natural pools look like something out of a Scottish myth.

Notorious artist squat renovated into legal studios.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Hidden beneath the streets of London is a secret subway that only carried mail.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The ghostly remains of an accidental sea.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

An enormous, inside-out glass globe built in 1935.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A 140-year-old castle with underground caves hidden in San Francisco.

The sign at the garden gate reads: "These Plants Can Kill."

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Tucked in the back of this amazing antique store is an important piece of medical history.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.