A memorial for an outsider theorist who believed that the planet is actually hollow.

A large collection of motorbikes with some impressive gems.

The final resting place of the most famous sharpshooter.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

Display that gathers the basic elements of the universe in one convenient location.

A giant concrete egg marks this Indiana town as the "Egg Basket of the Midwest."

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

This shop is named for a runaway elephant who smashed through its doors, stole some peanuts, and spent five days on the lam.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

The world's only known button museum.

An antiquated German apothecary on Chicago's North Side.

A speakeasy takes on Chicago's drinking culture.

Honoring Italian greats from Joe DiMaggio to Rocky Marciano.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

A bloodstain from "the wound of the transverberation of the heart."

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

A suspended garden, now gone, once hung in the middle of this abandoned church.

A castle built by an eccentric medieval enthusiast in rural Ohio.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

Where beautiful signs live on forever.

This unassuming home was once “grand central station” for the Underground Railroad.