Strange red rock formations that have been attributed to a higher power for hundreds of years.

This vintage theme park is peak Christmas kitsch—and it's open all summer.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

So many migrating birds roost on the bridge, it has a special summer speed limit.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The first declared National Monument in the United States.

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.

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

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

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

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

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

This private residence was the template for one of the most beloved television homes of all time.

A huge musical instrument played by the ocean.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

A 131-year-old wunderkammer of Texas history.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.