The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

Ancient church constructed with a special wood that preserves prints from the past.

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

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

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

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

"May the force be with you always."

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.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

This creepy, abandoned cemetery is all that remains of a once booming mining town.

A replica that won't float away.

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

These headstones and a few stone foundations are all that remain of a once-booming mining town.

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

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

The site of the gruesome massacre—and maybe cannibalism—of five men, a tragedy that made Alferd Packer infamous.

This spectacular track has run continuously since 1882.

A recreation of an Old West apothecary full of curios.

A cemetery full of touching tombstones from a community of railroad workers, uranium miners, and Cold War missile launchers.

A ghost town that held steady longer than most, but finally gave up the ghost.

This popular pilgrimage site offers a hole filled with holy healing dirt.

The U.S. Air Force has an anti-satellite laser weapon.