Years of archaeology, just chillin' by the water cooler.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

All of Chicago's wood-paved streets are long gone but two alleys remain.

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

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

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

An antiquated German apothecary on Chicago's North Side.

An enormous park-like oasis, full of famous Chicagoans' graves.

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

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

In the early 1800s, surgery was also a show.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

The oldest surviving botanic garden in the United States.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Century-old shop, specializing in Occult products.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

An Irish Memorial commemorating those who perished due to potato blight.