New Exhibit: Remembering 10 Grayslake Stories. Open Wed-Sat 12-4 PM. Some stories you may have already know, like Pat’s Pizza or the Grayslake Family Outdoor Theater. Others, like our namesake William M. Gray or Grayslake’s first carnival, you may have wondered about. This exhibit includes: historic images, a giant pizza, a hands-on carnival for kids, a silent film about the Grayslake Outdoor Theatre, and more!