A reproduction of earth's many biomes.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A self-built castle made by a mysterious man.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Dramatic river bend surrounds a natural red-rocked pedestal.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

Although it also features red, orange, and variegated cliffs of Navajo Sandstone, this state park is often overshadowed by its more famous neighbor.

A unique collection of drawings that represent Fremont Native American culture.

Irontown was founded in 1868, as a second attempt to mine iron from the nearby Iron Mountain.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

A spectacular overlook of the Little Grand Canyon of the San Rafael River, a deep sandstone gorge streaked with orange, red and white in a remote, uncrowded part of Utah.

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.

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

Only ruined buildings and abandoned charcoal kilns remain of this once bustling Wild West boom town.

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.

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

The only ski tunnel in North America provides easy access to amazing snow and beautiful views.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

An improbable waterfall springs from an orange-white cliff face, tumbling into the headwaters of the Virgin River above Zion National Park.

This lava formation earned its whimsical name from the log-like formation of it stones.