As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

One of the coolest murals in Minneapolis.

A Building for Your (Former) Funerary Needs.

A fence constructed completely of skis on Monroe Street.

A Museum Dedicated to the Heroes That Fight Fire.

A little-known memorial to servicemen and nurses killed in the line of duty during the First World War.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

The first declared National Monument in the United States.

This archaeological dig site and museum is home to one of the largest dinosaur fossil collections in the world.

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

A memorial to the most decisive Native American victory of the Plains Indian War.

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

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

This six-building complex is the home of the world's largest steer.

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

A replica of a fort built from a frontier town's mass hysteria in the face of false reports of impending Native American violence.

The world's largest Holstein cow.

The metal bird, nicknamed "Sandy," stands nearly 40 feet tall and is an homage to the birds that migrate through North Dakota every year.

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