Meet the "Green Monster" of Monico, Wisconsin.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

Largest outdoor staircase in the United States.

This freshwater spring fills with 10,000 gallons of water per minute.

This small, nautical gift shop is home to a 500-pound behemoth.

All that remains of a vanished Michigan lumber town, remembered for tragedy, plague, and a witch’s curse.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

There is an art, a science, and certainly a responsibility to occupying the Big Red Chair, and this is where it's learned.

This unusual three-way wooden foot bridge spans two rivers at once.

This sprawling building built in 1890 was one of Minnesota’s earliest and largest mental health facilities.

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

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.

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

The statue honors the booming birds Rothsay, Minnesota, is famous for.

The world's largest otter started his life as a high school shop project.

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

Visit a church sculpted from hardened lava.

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

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

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.

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

A series of life-sized statues of each governor of the state of South Dakota.