This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

A beer pipeline runs beneath Bruges.

Because sometimes you need to make a batch of frites even when the stores are all closed.

The private clubhouse for the members of the Academy of Magical Arts.

Amsterdam's former hotspot for public executions and dissections.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Long tunnels run under the ancient chariot racing circuit to the tower.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

The other side is actually green.

A fortified city, home to a remaining population of five families

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

God's Saharan sandbox of wrath.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

One of the most spectacular canyons in the world.