Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

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

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

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.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Every president in history is immortalized in bronze in downtown Rapid City.

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

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

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

The first declared National Monument in the United States.

The same security that protects our nukes accidentally protected a gentle herd of antelope.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

The only retired U.S. nuclear missile silo that is open to the public.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The world's largest sticker ball weighs in at a mighty 231 pounds.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

This sidewalk tribute honors Colorado's great culinary creation.

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

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.