What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Shop of curiosities with a dinosaur museum tucked in its basement.

This cave holds a surprisingly colorful variety of geological oddities.

Robots, lasers, and whoopee cushions, oh my!

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

Funhouse of found art and participatory sculpture.

A museum within a museum, devoted to history's most questionable medical devices.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This large midwestern cavern features impressive rock formations and an underground waterfall.

An eclectic assortment of medieval architecture in a small Iowa town.

The farm toy capital of the world hosts a museum filled with toy tractors dating back to the late 1800s.

Ever wanted to can Spam?

Eight feet in diameter and more than 24 feet around.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

An old town theater converted into a celebration of the hobo legacy.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

A small burial plot formerly stranded in the middle of a road.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

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

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

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.