The Jacksonville Historical Society’s 13th annual Gingerbread Extravaganza shows off some sweet architectural creations from Dec. 3 to 23, at the historic Old St. Andrew’s Church at 317 A. Philip Randolph Blvd. Dozens of gingerbread and candy houses built by chefs, bakers, architects, engineers, culinary school students, families and others will be on display from 11 a.m.