This is not your typical jungle gym.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This mosaic-covered bar is brimming with curated curios.

Less a museum than a bizarre fantasy world created by artists and engineers.

Huge abstract sculptures of the Puerto Rican Flag.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A bloodstain from "the wound of the transverberation of the heart."

An eccentric park and pool.

Combination beer garden and music venue in the heart of Wicker Park.

The beloved home to all publications indie, erotic, and punky.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

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

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

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

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

This historic hotel invented the chocolate brownie.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

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

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

Where one of America's greatest songwriters lived before he was Bob Dylan.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

Only the original archway remains from the building where a false cry of "fire" started a panic that claimed more than 70 lives on Christmas Eve in 1913.

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

A relic of the Cold War in Chicago.