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

An architect's childhood fantasy treehouse made real.

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

A beautiful geyser under environmental threat.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Home to the deepest rift anywhere on Earth.

This museum glorifies the humble potato.

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

A replica that won't float away.

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

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

The drama of nature in full effect in this Nevada State Park.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A homage to the King at the hotel where he revived his career.