Did you know that Rosehill Cemetery, at 5800 N. Ravenswood Avenue, was named Roe's Hill in 1859 when it opened? It was named after tavernkeeper Hiram Roe. A mapmaker erred and changed the name, and then a signmaker used that spelling, and the name stuck.
Did you also know that the Rosehill Cemetery is home to the largest secular collection of Tiffany art glass windows anywhere in the world? John G. Shedd (yes, that Shedd) commissioned Tiffany to design a skylight for his memorial chapel and made Louis Tiffany sign a waiver saying the design would never be duplicated. It takes about an hour and a half to tour all the windows. But, if you'd rather take an organized tour, the Chicago Architecture Foundation has one to offer.