A failed piece of Orientalism has become the proud symbol of a community.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

The first American department store, and home to the largest operating musical instrument in the world.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

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

The rusting remains are visible sticking out of the waters of the Delaware Bay.

World War II bunker still standing on the New Jersey beach.

Memorial built in 1922 in remembrance of WWI casualties.

Step inside Lucy, the world's largest "elephant."

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Yo, Adrian!

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

An ancient knight and a symbol of the city's freedom.

Go inside to really appreciate this 500-year-old technological masterpiece.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.