Site of the greatest known waterfall that ever existed.

The first park built over a freeway is a brutalist masterwork.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Dedicated to a Bolshevik revolutionary, this museum is a true time capsule of the Soviet era.

A fountain standing as a testament to a doomed alliance.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

An underground city of salt.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

The glowing blue Nymphaeum of Emperor Tiberius.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

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

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

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

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

This unassuming home was once “grand central station” for the Underground Railroad.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.