The world's longest known cave system.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

This home is steeped in history from, George Washington to George Corwin, High Sheriff during the Salem Witch Trials.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

A museum dedicated exclusively to the lore and history of ouija boards.

A diverse, expansive nature preserve in northeastern Kansas.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

This unconventional used book store was once in the news for the surprising act of burning books.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

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

Topeka has its own great wall, and it's covered in colorful images from the city's history.

Why settle for barbecue chips when you can get actual barbecue?

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Step back in time at this 1950s display home, built to showcase once cutting-edge electric amenities.

This zombie-themed restaurant stands out in the heart of corn country.