The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

This unique zoo is the only place in the world where you can see all 15 species of crane.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

A theme park attraction designed to turn your children into LARPers.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

The cliff and rock formations are made out of Sioux Quartzite.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

At the turn of the 20th century, the Minnehaha County courthouse played host to sensational public divorce trials.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

A ghost town now swarming with dozens of prairie dogs.

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.

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

One of the first intercontinental ballistic missile sites in the United States.

An ode to South Dakota's state fish.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

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

A monument to the forgotten French explorers and their landmark expedition.

The arch that celebrated the completion of the Lincoln and Victory highways.

Chef Lawrence West serves up Indian tacos, wojapi, and other Lakota dishes at the brick-and-mortar incarnation of his popular food truck.

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

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