What does three-quarters of a billion dollars buy? If you're former President Barack Obama, it buys you a 19.3-acre presidential library complex that blends a museum, park, and community hub on the city's South Side into a huge, sprawling campus. There are basketball courts, a picnic area, a Chicago Public Library branch, and community gathering spaces. Visitors can get a sneak peek at some of the facilities prior to their opening on Juneteenth (June 19).