This restaurant serves wood-fired fare served in a natural cave with a live spring.

An extravagant western hotel where every floor is the "ground floor."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

If it wasn’t for an innovative use of quilts during a crisis, the city of Panguitch might not exist today.

Home to the deepest rift anywhere on Earth.

New fungal and bacterial species call this deadly lake home.

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

A smoke stack so large, the Washington Monument could fit inside!

At the time of its completion, it was the tallest dam in the world.

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

A beautiful geyser under environmental threat.

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

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

This town is home to the world’s largest arch constructed entirely of elk antlers.

This rustic old building is said to be the most photographed barn in America.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Largest man-made excavation on earth!

Visitors to this library are in for a real-world education in modernist architecture.

Jurassic Park—A Still Life.

The largest island on the great salt lake is home to curious creatures and strange stories.

Despite its name, this route in southern Utah offers a heavenly day trip.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.