A monument to the egos of two railroad magnates that fell into decline along with their careers.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

This massive metal sculpture in the shape of a folded paper airplane overlooks a Utah mountain.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Miraculous tree that seems to sprout out of solid rock.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

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

Experience a charming 1930's version of "infotainment."

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

The wild west is still alive and well at this authentic mining town watering hole.

The drama of nature in full effect in this Nevada State Park.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.