World's largest Christmas store.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

This midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

A display of magnificent stained glass windows is the first exhibit of its kind.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

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

These markers are used to determine the ground stability of the Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

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

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The world's longest known cave system.

The first artificial white water river course in North America cuts right through an Indiana city.

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