A creepy, deserted mock Arabian village can be found in the middle of the Qatari desert.

Fourteen sculptures showing the development of a fetus stand outside a hospital for women and children.

This mix of Islamic art, vintage vehicles, weaponry, architecture, and history is an ode to eclecticism. 

The enormous diamond-shaped building packs a trove of academic and literary treasures into one futuristic space.

This unique museum doesn't shy away from highlighting Qatar's role in the history of slavery.

Home of the infamous Rug Man of Doha.

The building is a gigantic piece of art inspired by the shape of a desert rose.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

A grove of colossal man-made flowers built to collect the sun's rays.

This failed condo development was reborn as a street art hub.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A popular swimming hole that hides one of America's most deadly diving spots.

One part antique store, one part curiosities hodge-podge.

An emerald-green grotto just a short trip from Austin.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

A unique tribute to the millions of animals who served and died for the British military.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Colorado's only true geyser is hidden within the San Juan National Forest.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.