This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

Odd outsider art installations surround a Gold Rush-era ghost town.

The most magnificent bottle house in a town strangely full of them.

A land of debatable treasure.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

The highest bridge in America was built for an almost unnervingly small amount of money.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

This Wild West attraction is probably more fiction than history, but that doesn't mean it's not awesome.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

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.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

A sharp bend in a dramatic river canyon cut through red rocks.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

An homage to everyone's favorite prehistoric cartoon family.

The cinder cone volcano with a less than complimentary name.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

More than a century old, this trading post resides in the Navajo Nation.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A spiritual vortex among the red rocks in Sedona.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

This historic national park is covered in the stunning ruins of red rock pueblos.