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

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The angel of death appears to weep black tears at this grave marker.

Hot Doug's "Hot Dog" Stand.

A Museum of Holography frozen in 1974.

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

A century-old network of freight tunnels underneath the city's historic business district.

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

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

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

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

The world's only known button museum.

Pizza with a side of fine art.

A lush green oasis in the middle of Chicago.

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

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

Forever immortalized in concrete, this Simpsons etching was crafted by show creator Matt Groening.

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!

The home of the world's first and last remaining "wooly ant."

Taking the 3D art experience far beyond blue and red glasses.