An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

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

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

A replica that won't float away.

Come for the speed, leave in love with the desert.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A house carved into a rock in the 1940s.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

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

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

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

This geothermal hot spring hides beneath a slowly growing mineral dome.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A museum and tribute to a brave profession.

The unusual burial monument of Arizona's first governor.

A self-built castle made by a mysterious man.

The first permanent memorial to a unique secret weapon of World War II.

The cinder cone volcano with a less than complimentary name.

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

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

The remains of this hell for leather wild west town can still be found in the Arizona desert.