A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Time travel with sweets across history at this research-based candy store.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

Standing guard on top of an old, vacant ice cream shop.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

Opulent downtown movie theater now houses cars as an indoor parking garage.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

An art deco ice cream shop covered in vintage train station tiles.

Where beautiful signs live on forever.

What is it about mushrooms that makes people wish they lived inside of them?

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

The spectacular collection of one of the world's best woodcarvers.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.