Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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

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

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This super steep hike ascends 2,000 feet in less than a mile.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The highest bridge in America was built for an almost unnervingly small amount of money.

When ecosystems collide in the arid Southwest.

In the 1950s, two women saved this grand theater in the Colorado mountains from demolition.

One man's quest to save his town with a trail of record-breaking sculptures.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

A fitting attraction for the corn capital of the world.

A true roadside icon standing on the same plains that the herds once roamed.

The metal bird, nicknamed "Sandy," stands nearly 40 feet tall and is an homage to the birds that migrate through North Dakota every year.

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

The first declared National Monument in the United States.

Home of a French nobleman's short-lived attempt at raising cattle in the Badlands of North Dakota.

A house carved into a rock in the 1940s.

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