The "Seinfeld" diner.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A crumbling hospital from the 1850s on Roosevelt Island.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

In 1952, this restaurant began selling the Colonel's “secret” recipe.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This geothermal hot spring hides beneath a slowly growing mineral dome.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

In one of the hottest parts of the Mojave Desert, shallow bedrock forces the typically dry Mojave River to the surface in this canyon, providing a vital oasis for humans and wildlife.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

Decommissioned experimental solar facilities that pioneered solar energy technology.

Where NASA's satellites and rovers phone home.

The cluster of boulders near Fort Irwin is covered in military insignia.

The liveliest ghost town in the state.

Salt is slowly eating away this abandoned saltworks town in the desert.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Abandoned hotel with adjacent lake and golf course.

Thousands of turbines whir at at the origin of North American wind power.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.