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

More than a century old, this trading post resides in the Navajo Nation.

A sharp bend in a dramatic river canyon cut through red rocks.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

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.

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.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

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

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

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

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

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

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

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

Once a year, at exactly 11:11 a.m., this monument comes to life.

The only presidential monument to display a late POTUS's actual casket.

The world's largest military aircraft cemetery.

Despite a recent paint job, the factory still sits empty.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.