More than 350 million years ago, western New York was covered in a vast sea. Today, you can dig up the remains of the plants and animals that lived there.

An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

Experience a charming 1930's version of "infotainment."

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

This former shopping outlet is now adorned with beautiful graffiti and murals.

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

This historic national park is covered in the stunning ruins of red rock pueblos.

The eroded core of an ancient volcano is now accessible by a short hike.

The Magical World of George Phar Legler.

This bomb shelter-themed bar has barely changed since it opened.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

A rare wayfinding portmanteau of “Street” and “Avenue.”

This remote camping site offers incredible stargazing opportunities.

The fading, forgotten remains of a once bright and booming factory.

Run by members of the Tohono O'odham Nation, this community farm nurtures traditional desert cultivars.

Hidden on a cattle ranch in Arizona, this bookstore has been celebrating Southwest literature for more than 40 years.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

One of the largest, oldest, darkest, quietest motel rooms in the world.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.