This historic theater's pipe organ still accompanies silent films just like it did in 1929.

The modest childhood home where the baseball legend and Yankees star learned to hit from both sides of the plate.

The Quapaw tribe supplies the meat and produce in this Oklahoma casino restaurant.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

This crumbling stump is all that remains of what was once thought to be the oldest living organism.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

A rancher expanding a natural spring for his cattle came up with bones – lots and lots of them.

The oldest extant wooden jail in South Dakota and possibly the United States. 

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

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

The formidable fowl can be found standing near an isolated hiking path.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

This hidden gem in Arizona is truly worth the rugged journey.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

It's safe—and permitted—to walk across these twin natural sandstone arches.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.