This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

A spiritual vortex among the red rocks in Sedona.

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

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

A breathtaking 19th-century trail overlooks Lake Tahoe.

A land of debatable treasure.

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

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

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

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

"Only the devil could play golf here."

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

Improbably, the largest wildlife refuge in the conterminous 48 states sits just northwest of Las Vegas, Nevada.

Keen eyes can find the Disney influences throughout this treasure trove of a tiki bar.

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

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

Temporary Burning Man sculpture made of two 18-wheelers.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The words of the neighborhood's most famous poets adorn four concrete walls.

60 feet of towering steel balances gracefully.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

A second generation sun-powered marvel lights up the night.