This rustic old building is said to be the most photographed barn in America.

An isolated, rusty phone booth commemorates Iceland's first international telegraph cable.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Long before air conditioning, Persian architects found an ingenious way to cool off.

A UFO scrapyard in the California desert.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

This ancient goddess temple inspired the design of India’s Parliament House.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

The abandoned summer estate of the former Greek Royal Family.

A dreamy mausoleum honors Persia's most famous poet.

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

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

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

One man spent 10 years building a spectacular section of road because no one else would.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

Hundreds of toothbrushes hang from a wire fence along a quiet New Zealand road.

The shortest river in America flows for just 201 feet.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

A museum dedicated to an incredible woman who founded a pioneering school for rural Black students.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

Explore the quarry where the marble was sourced for Michaelangelo's David.