For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

These giant metal horses graze on a hilltop near the Montana highway.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

An obelisk commemorates historic floods that hit two towns along the Red River of the North.

Examine the impact of the horse on Great Plains culture through exhibits on ranching, rodeo, and the Native American way of life.

This municipal park along the Missouri River honors the galley central to the Lewis & Clark Expedition with a replica ship and sculptures.

Wally is the 26-foot-long fiberglass emissary for Garrison, North Dakota, one of the self-proclaimed (and hotly contested) Walleye Capitals of the World.

Only place outside China and India where two overhead DC power lines cross.

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

This stone, said to have once been a young woman, is sacred to the Dakota and Lakota nations.

Home of a French nobleman's short-lived attempt at raising cattle in the Badlands of North Dakota.

This sky-high radio mast is formerly the tallest man-made structure in the world.

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

On the windswept Dakota plains there is a memorial to circus workers who were struck down by lightning.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

The world's largest Holstein cow.

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

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

A monument to the center of the North American continent may be off by a few miles.

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

The remnants of an early American attempt at missile defense.

The best revenge is a five-tiered layer cake of a dwelling.

A jewel of early electric boosterism once again charms Connecticut's historic "Hat City."