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

The first declared National Monument in the United States.

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.

This canyon is named for a unique geologic formation where the river vanishes underground near the mouth of the canyon and reappears farther down.

One of America's largest retail chains got its start in one of its most remote rural destinations.

"The Most Boring Road in the State."

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

Large one-man sculpture park in Michigan.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

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

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.

America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

The largest Walleye statue in the world calls this Minnesota town home.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

Mining town from the late 1890s, once home to Calamity Jane.

A majestic hotel that also stands as a historic relic.

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

Crystal clear, drinkable mountain spring water by the side of the road.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

This landmark church at the Flathead Reservation mission features 58 ceiling and wall frescoes painted by the mission's cook.

This amazingly preserved Gold Rush town is a historian's dream.

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."