Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

On the Hudson resides one of the largest clocks in the world.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

World Trade Center memorial likened to a woman's sexual organ.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Final resting place of two dozen New York City harbor ships.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

Yo, Adrian!

World's first "penitentiary," meant to be humane, drove men insane.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A hugely vast Irish landscape of barren rock that stretches for miles.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

The most powerful waterfall in all of Europe.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Three columns of volcanic rock shoot out of the ocean.

This stunning concert hall has become a symbol of Iceland's national recovery.

An encyclopedic collection of mammal penises.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.