An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A small flooded ghost town with a few scattered structures remaining.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

This mother-daughter run curiosities shop is a beautifully odd mix of taxidermy and exotic plants.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

Eulogizing an unknown man's unusual demise.

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

An eatery for UFO seekers on the Extraterrestrial Highway.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

There's nothing creepier than a cemetery next to a clown motel.

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

The longest living non-clonal organisms on Earth.

A picture-perfect town, perfect for blowing up.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

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

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

"Mock all and sundry things, but leave the saints alone."

This landmark cemetery in Boston was created more than 300 years ago.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.