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

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

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

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

Beloved bar home to musicians of all eras and reputations.

Internationally known record store and purveyor of "dusties."

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

An eccentric park and pool.

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

How did a 2,000-year-old Roman column find its way to a Chicago park?

Where dioramas can follow you home.

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

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

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

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

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

This once rural mansion now sits in the heart of the city.

A little slice of Japan and its aesthetics in London's Holland Park.

This hidden green space is the city's second largest conservatory.

London's old-school healing garden.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.