Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

An emerald-green grotto just a short trip from Austin.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's largest collection of serial killer artwork and other macabre exhibits.

The stone-covered graves lie within the ruins of an Old West ghost town.

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

A unique collection of old miners' cave homes carved in to the hillside cliffs near Death Valley.

A stretch of highway even lonelier than the so-called "Loneliest Road in America."

The second seat of Nye County, still mostly a ghost town, has become a magnet for those looking to live "away from it all."

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

Red rock "fangs" jut out of the desert near the Extraterrestrial Highway.

A professional special effects makeup artist’s collection of horror creatures and one-of-a-kind recreations on display in downtown Boulder City.

Colorful outcrops and cliffs just north of Reno provide a scenic backdrop for hiking and mountain biking.