A serpentine highway twists and turns over the treacherous Norwegian Sea.

Gutted airplanes slowly decay in a Florida field.

This once luxurious Catskills resort is now a haunting ruin.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

An underwater city for the dead.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

A sharply wedged sundial marks the point at which each day in the United States begins.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

The world's brightest bioluminescent bay.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

The world's second largest single-dish radio telescope, once used to contact E.T.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

Hunting trophies decorate Oregon's most unique bar-restaurant.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

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

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.