The tallest dam in Montana and top 10 in the country.

New fungal and bacterial species call this deadly lake home.

Where unreadable addresses are read, 24 hours a day, seven days a week.

This 35-foot troll in Jackson Hole, Wyoming, was made by the world’s leading recycling artist as part of a global fairytale.

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

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

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

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

Step into the cool deep past and unknown future of who begat who.

Next to Salt Lake City's Assembly Hall stands a tribute to some unlikely heroes of early Mormon settlers.

Built in 1859, this eagle-topped archway marks the entrance to Brigham Young’s property.

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

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

This balancing rock is one of Utah's most unusual geological formations.

The location where the iconic movie character declared it was time to go home.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

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

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

The fifth-longest natural arch in the world, and the longest outside China.

A small oasis not far from downtown Moab.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.