Tucked into a busy corner in Oak Park sits a little ice cream parlor that has been scooping happiness since 1919. Petersen’s Ice Cream has served neighborhood families for more than a hundred years, and folks still line up for its creamy scoops, hand-built sundaes, and homemade fudge. Petersen’s Ice Cream is exactly what its name promises, an old-fashioned parlor serving classic fountain treats to anyone who wanders in. World War I had just ended, silent films played in theaters, and in Oak Park a small ice cream parlor opened its doors. The village has plenty to explore on foot, so an ice cream run can easily become part of a larger, low-budget day trip.