A riverside park built around the ruins of a massive dam that collapsed in 1909.

The lowest point in South Dakota and the source of the Minnesota River.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

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

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

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

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

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Part of a secret 1970s nuclear defense program is now open to the public.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

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

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

Three legendary, living albino buffalo roaming their pastures for all to see.

This park straddling the United States-Canadian border has been a symbol of peace since 1932.

A rim-made reptile in North Dakota.

The world's tallest turtle riding the world's largest snowmobile.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

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

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

One North Dakota man's vast collection of rare rocks, polished orbs, and geological wonders.

An entire city block built completely out of petrified wood.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

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