The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

"Only the devil could play golf here."

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

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The rocks in this arid basin leave trails of movement behind them.

The current Eureka County Courthouse replaced an all-wooden structure that had previously been an ice-skating rink.

A land of debatable treasure.

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

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

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

Experience a charming 1930's version of "infotainment."

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

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

The drama of nature in full effect in this Nevada State Park.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

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

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This store also houses a museum dedicated to the history of these small, historic community shops.

Believed by many to be the oldest surviving public monument in the United States.

The massive Roman arch in New Hampshire that was meant to be a tomb.

A serene plaza that commemorates one of the Granite State's most iconic figures.