The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

The largest self-built castle in the U.S., six decades in the making.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A technicolor place of worship for Elevationists.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

Red ocher pictographs survive in this tufa rock shelter on the shore of an ancient lake.

A large wave-cut shelter, a major archeological site, overlooks the dry basin of Winnemucca Lake.

Two well-preserved charcoal kilns survive in a remote part of eastern Nevada.

This massive solar generating facility in the Nevada desert has been plagued by difficulties.

This hidden, women-built-and-operated Nevada temple on Shoshone Native American land is dedicated to the Egyptian lion goddess Sekhmet among other goddesses.

How a bat poo mine became a major Native American archaeological site—and connections to legendary red-haired giants.

Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

One of the best places to dig—some say on the planet—for six different types of chalcedony.

Located in the remote Monitor Valley, this travertine bowl contains a scalding pool of water.

An unusual slot canyon in the Aztec/Navajo Sandstone has a cross-section like an inverted old-fashioned keyhole.

This dry lake bed contains the oldest known petroglyphs in North America.

A hidden slot canyon in the southern Nevada desert makes an unexpected oasis and scenic hike.

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