An abandoned observatory in the middle of the Illinois prairie.

This small-town park in southern Illinois has a 1,000,000-gallon swimming pool and a 100,000-barrel oil well.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

This historic lavatory leftover features two levels of defecation stations completely without context.

You were once able to challenge a chicken to tic-tac-toe at this park, which is now converted into the Aikman Wildlife Adventure.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

The multinational Burger King chain is banned from operating within 20 miles of a family restaurant filed under the same name.

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

The world's largest collection of the world's largest objects is in one small Illinois town.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

This is not your typical jungle gym.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

Formerly the most gerrymandered district in the U.S., it twisted and turned along racial borders.

The oldest experimental corn field in America is still creating better ways to grow crops.

The house is an iconic pilgrimage site for fans of the Illinois-based emo band.

The carved remains of a 200-year-old oak tree memorialize the namesake of the iconic "Wizard of Oz" character.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

This abandoned Abraham Lincoln statue has also earned the honorary of "World's Ugliest."

The park that the Chicago Stockyards built.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.