This once-booming Gold Rush town is now home to a herd of feral donkeys.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

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

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

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

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

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.

This church was constructed by a shipbuilder and designed like an upside-down boat.

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

Opened in 1911, this small shop is the oldest ongoing establishment in St. George.

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.

A lovely park home with a few interesting guests.

An ode to one of the dirtiest jobs during the construction of the Boulder Dam.

An off-grid art installation that encourages its visitors to imagine a world without waste.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A hand-built folk art installation covered with messages of God's love.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Semi-recognized center of the world, with many oddities.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.