While many spent the afternoon learning about water conservation, some architecture enthusiasts learned about some of Central Illinois historical homes and landmarks.
About 20 people gathered in the parlor of the Pettengill-Morron home on Moss Avenue for a book discussion with a Knox college professor and author.
Doctor Lance Factor wrote a book that discusses a Swedish born architect who built and designed homes in Peoria and Old Main at Knox College...a national landmark.
Marilyn Leyland with the Peoria Historical Society says, "The book focus's on his role at Knox college where this architect, Charles Ulricson incorporated masonic symbolism into a school founded by abolitionists who deplored secret societies like the masons."
Doctor Factor has extensively studied the cryptic designs in Old Main's architecture.
The event was hosted by the Peoria Historical Society as part of National Library Week.