This is one of Chicago's most delightful locations to visit during any season. It is open year round, every single day, and admission is always free. For Chicago locals, this is "the zoo." It’s part of a city kid's childhood. If you grew up in Chicago, chances are you have memories of picnicking on the zoo lawns, playing by its lagoons and touring its many animal exhibits. One trip here and your family will want to make the zoo a surefire weekend stop for years to come.