This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Don't blink or you'll miss it.

Ancient human, animal, and geometric figures drawn in the earth.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

A hand-built folk art installation covered with messages of God's love.

An off-grid art installation that encourages its visitors to imagine a world without waste.

The ghostly remains of an accidental sea.

World's largest collection devoted to one fruit.

These lush groves of fan palms rise up like oases out of southern California's Colorado Desert.

Large tower used for simulating radiation of Hiroshima bomb and the tallest object ever relocated.

A homage to the King at the hotel where he revived his career.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The arch that celebrated the completion of the Lincoln and Victory highways.

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

This historic estate on the east shore of Lake Tahoe was home to an eccentric millionaire (and his pet elephant, Mingo).

Michael Heizer's masterwork in the Nevada Basin.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

A tree bears footwear on the loneliest road in America.

Singing sand that stands as the final remains of an ancient lake.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

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

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

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.