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

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

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

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

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.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Come for the speed, leave in love with the desert.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

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.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A gigantic 10-foot tall stone man.

A once grand hotel is being retaken by the wilderness it once capitalized on.

This throwback amusement park is home to rides and unique storybook figures from the past.

At this farm in upstate New York, the former president plotted his reelection campaign.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

The highest point in Virginia can only be reached by passing through ponies and flowers.