The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

This Old Testament garden features 100 plants from biblical times.

A sweet symbol marks the place where torturous executions were once carried out.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

The great Danube river starts here.

This private island is still in the family after a 400-year history including a witch hunt and a pirate.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

A small part of lower Manhattan is actually made from a bit of England.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Politicians, bureaucrats, and military officers gathered in this field near the Capitol to settle their disputes with blood.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

You would never guess that before World War II this lonely field was a bustling German city.

A historic ruin just 20 feet away from a busy highway onramp.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Home to the deepest rift anywhere on Earth.

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

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

Human-made caves excavated to hide a secret society of wealthy pagans.

A reportedly haunted 14th century church is curiously facing the “wrong direction.”

An alchemist's "magic door" stands in the middle of a Roman park.

A pair of 7-foot legs belonging to the military man of the Mayflower stand jauntily by the side of the road.

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

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