The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

This temple was constructed entirely by Roman soldiers.

The world’s oldest surviving single-arch railway bridge.

Follow the original medieval paths that wind through this intriguing section of the city.

One of the oldest suspension bridges in the world blends in perfectly with a medieval castle.

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

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

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

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

In Houston's airport, a cow is properly equipped to jump over the moon.

This historic hiding place, often used by people escaping slavery, is a testament to a heroic struggle for freedom.

These floating gardens show what Mexico City used to look during the Aztec Empire.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

Hawaii’s largest cemetery rests inside an extinct volcano crater.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

The “Coin Cabinet of Dresden” houses a collection of over 300,000 numismatic artifacts, one of the largest of its kind in Europe.

Ruins of a German castle on top of a towering stone pillar.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The final resting place of the great navigator, or maybe his brother.

The site of a legendary battle immortalized in medieval literature.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.