A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

Pumpkin-like gargoyles and grotesques peer down from the rooftop of this unassuming apartment building in Illinois.

The house is an iconic pilgrimage site for fans of the Illinois-based emo band.

A Depression-era sculpture by Charles Umlauf survives in a small suburban post office.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.