It was once the base for a series of domestic terror attacks.

A nostalgic bibliographic gem.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The world's largest Holstein cow.

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

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

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

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The first declared National Monument in the United States.

A cemetery housing wild west legends in South Dakota.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

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

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

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

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

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

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

Just a man taking his prehistoric pet for a stroll.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

The humble beginnings of the man known for his lavish "champagne" music.

Mennes invented the tags we all place annually upon our license plates, and his story is told frankly and in full upon his headstone.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.