The odd design of former President Barack Obama’s new presidential center is supposed to evoke unity and not Darth Vader, according to an Obama Foundation official, who explained the bizarre look of the austere building. The $830 million monolith — slated to open in Chicago next year — has drawn comparisons to the “Death Star” on social media, and some locals have described it as a “concrete tomb” and a “monstrosity.” “The shape of the building was actually meant to mimic four hands coming together to show the importance of our collective action,” Obama Foundation Deputy Director Kim Patterson told...