A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

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

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

These free-roaming horses were once destined to disappear from the land.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

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

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Don't blink or you'll miss it.

This golf ball–shaped former desert real estate office now houses a UFO museum.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

What is the Thing?

The world's largest military aircraft cemetery.

An urban laboratory.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Limestone caves with spectacular showcase chambers.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

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

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

America's only nuclear missile silo open to the public.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.