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

Walk through the sets of old western films at this small museum in Utah.

Not your typical pet cemetery.

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.

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

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

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

An homage to everyone's favorite prehistoric cartoon family.

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

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

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

These markers are used to document elevation changes around the famed dam.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The most magnificent bottle house in a town strangely full of them.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

A land of debatable treasure.

Odd outsider art installations surround a Gold Rush-era ghost town.

A non-native grove of 241 redwoods in Southern California.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.