A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.

A living art gallery painted on a canvas of Monterey pine trees.

18th century opera in its original splendor.

The internet as provided by a James Bond villain.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The second oldest anatomical theater is housed in a museum of curiosities.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

The longest and tallest aqueduct in Britain can actually be sailed across.

A rotting air force base is now home to rare birds and scarce plants.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

A fifth-century temple improbably built into the side of a cliff.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

A 30-acre garden inspired by the principles of modern physics.

Centuries-old bridges grown from tangled roots.

An Australian lake whose pink hue defies scientific explanation.

A one-of-a-kind collection of a unique medium.