A miniature rainforest is growing inside of a Midtown Manhattan office building.

A floating McDonald's built for Expo '86 is now a derelict relic on Burrard Inlet.

This abandoned five-star hotel is now a five-star urban exploration destination.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

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

One of Europe's largest supercomputers is housed inside of a disused chapel.

A 20-meter (65-foot) robot towers over Tokyo Bay.

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

This small museum dedicated to the painful memory of segregation is essentially a time capsule.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This natural spring not only claims to heal the wounded but it has also been willed to God.

The remains of a chapel created for convenience.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Once one of the largest producers of pig iron in the world.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

New Orleans' famous cemetery, located on the site of a former race track.

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

This 80-year old mannequin is so lifelike it is believed to be an embalmed corpse.