A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A modernist landscape of water and sci-fi concrete.

The highway's southernmost spot is a beloved local attraction.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

A memorial dedicated to a highly decorated Marine and Korean War veteran, who also happened to be a horse.

Steepest flood safety railway in the entire world.

Rare recess caves fill this unbelievably beautiful Ohio park.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

The collection of ceremonial and cultural objects spans many countries and hundreds of years.

The highest point in Wisconsin is capped by two towers that are not as mythic as Tolkien's but provide much better views.

An oddly poignant roadside attraction celebrating American folklore.

The watery grave of an impractical idea.

When waves crash onto this section of beach, the rocks sing a song.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

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

This simple badlands butte is the highest point in North Dakota and may be the only high point to charge admission.

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

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.

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