Huge abstract sculptures of the Puerto Rican Flag.

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

This awkward aquarium sculpture is one of the strangest statues in Chicago.

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

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

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

Home to a protest movement, a bombing, and a dramatic change in labor history.

The 606 is a decade in the making.

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

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

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

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A hollow cement depiction of time's inexorable effect on the human body.

A lush green oasis in the middle of Chicago.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

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

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

A sprawling outdoor museum filled with larger-than-life works of art.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

The NBA player's elaborate former home is now a ghost of its old glory.

The final resting place of the world's first nuclear reactor.