A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This single-track road rewards brave drivers with stunning Scottish scenery.

An incredibly well-preserved piece of ninth-century Viking poop.

The most northern place on the mainland of Great Britain.

A sea cave with a waterfall and Viking past

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

A bizarre stone beast lurks on the beach of a popular tourist island.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

This "floating railway" is one of the world's oldest monorail systems.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

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

This abandoned Greek island was the last active leper colony in Europe.

Elvis's own personal tropical hideaway.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.