Cemetery featuring rare glass-fronted columbarium.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

This former nursery supplied plants for the creation of Chicago's largest park.

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

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

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

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

Theater has had many different incarnations but has survived the ravages of time.

No one knows how many bodies are in this vault in a Chicago public park.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

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

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

These abandoned grain silos and tunnels are an urban exploration dream.

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

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

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

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

The oldest university museum west of the Mississippi retains its 19th century feel.