When flour explodes, it's not a pretty sight.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

A museum dedicated to the exploring past, present, and future innovations.

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

A collection of pianos and more guaranteed to delight anyone interested in music history.

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

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

A museum of the dime museum that features weird entertainments of yesteryear, from feejee mermaids to flea circuses.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

The only remaining Cold War–era Minuteman II missile control center in Missouri.

Like Stonehenge, but with boats and oodles more charm.

Curious cave that stays a cool 56 degrees all year long.

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

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

The modest, restored home of the legendary ragtime musician John William "Blind" Boone.

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

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

The first home of the doomed aviatrix Amelia Earhart.

A roadside spring pooling in an old bathtub where anyone can stop and sip.

A 30-foot man on a penny-farthing bicycle rides along the banks of the Mississippi.