The man who was president for only one day and spent most of it asleep.

This historic cliffside mansion uses a natural cave for air conditioning.

A steeple that now houses a small church.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

A remarkably opulent mansion with a tragic history.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

This abandoned prison castle has become an imposing gallery of graffiti art.

This recently restored timepiece has stood all around Kansas City.

The famous greeting card maker owns a collection of paintings by the famed surrealist.

This Kansas City studio was home to Walt Disney's first animation business.

Hundreds of samples of "Devil's Rope" hide in a defunct vintage elevator.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

Journey up the capitol building's cupola for an amazing view of Topeka.

Home to Hollywood history and a very special salt crystal.

This mill has survived a tumultuous past to still produce flour and cornmeal.

This former mining town was named the most toxic town in America.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

An acoustic anomaly with a mysterious cause.

A half-size replica of the World Trade Center towers above Tulsa.

Nature's biggest mammal swims in landlocked Oklahoma.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The storied steakhouse is the last in a long line of Lebanese-owned supper clubs in Tulsa.