CHICAGO (AP) — Former President Barack Obama's influence in his presidential museum runs deep, from the location on Chicago's South Side to textured stone adorning its dramatic tower to striped reading chairs that resemble ones in his own home.

The Obama Presidential Center opens to the general public on Juneteenth after a celebratory dedication in Chicago with dignitaries. But tens of thousands of people — friends and family of museum staff, students and journalists — have already been offered a sneak peek of the nearly 20-acre campus as crews finish final art installations and landscaping.

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The roughly $850 million project covers the political and personal realms of the nation's first Black president. Campaign memorabilia and presidential artifacts are displayed in the admission-based museum tower while public spaces of the sprawling campus feature other things important to Obama: a new library, basketball court and picnic area with grills.

"This is a safe space for people to come and, yes, reflect on the historic moments of this presidency and the campaigns, but also to come together as a community to think about what change you can bring to your own neighborhood," Josh Harris, the Obama Foundation's vice president of public engagement, said during a recent tour with The Associated Press.