The city’s parks will have to find a new best friend. The head of Friends of the Parks said Tuesday that she will step down as the 40-year-old nonprofit sues to prevent the construction of the George Lucas museum on the lakefront. 

Chicago is vying for three major institutions: the Barack Obama Presidential Library, The Lucas Cultural Arts Museum and a casino. We’ll take a closer look at possible locations and what urban planning issues Chicago faces with such enormous projects. Vote in a poll.