The first declared National Monument in the United States.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

A cemetery housing wild west legends in South Dakota.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

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 last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

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

The most accurate timepiece in the world.

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

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

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

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

Calidum et Deliciose Succosum!

Seth Bullock, the sheriff of Deadwood, built this town immediately after Teddy Roosevelt’s death in 1919.

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

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

Memorials are nearly all that remains of this Arkansas prison camp, where thousands of Japanese Americans were forcibly relocated during World War II.

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

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

When this 160-year-old church was being built, a stonemason included a hidden homage to his late daughter.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

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