A gothic church spire sits atop this skyscraper, the tallest church in the world.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A concrete block embedded with thousands of pulled teeth was created by a local dentist to memorialize his dog.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

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

The world's largest anatomically accurate brain sculpture.

A humble homemade ride attracts visitors from around the globe to this small Midwestern town.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

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

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

The longest navigable underground river in the United States is home to countless blind and albino animals.

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

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

The inventor of the iconic Pringles can was so proud of his invention he was buried in one.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.