Supposedly Satanic numbers adorn this preserved submarine sail.

Home to the deepest rift anywhere on Earth.

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

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

A massive sea stack famous for its appearance in The Goonies.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

The only road through the heart of Glacier National Park.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

Come for the speed, leave in love with the desert.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

The fifth-longest natural arch in the world, and the longest outside China.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

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

"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.

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