Illegal drag racing two stories beneath Chicago’s streets.

The Bong-area park police have asked visitors to please, stop stealing the signs.

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

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

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

The only Bahá'í house of worship in North America and one of only a handful worldwide.

This striking art museum holds an amazing series of curiosity cabinets.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

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

A bizarre house filled with an astounding array of collections.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.