This just in! Exclusive footage of Mayor Daley just after the announcement! more ›

Hello from downtown Chicago. The festivities have been kicking here for not quite a half an hour or so and the cool weather hasn't dampened the spirits of the large crowd gathered here at a sunny Daley Plaza. We're still a little under an hour away from the start of the IOC's voting. Barring a huge upset, Chicago is expected to make it to the final round of voting, most likely against Rio. That means we won't find out who gets the Games until the official IOC announcement at 11:30 a.m. In the meantime, be sure to keep checking back with this post as we add more pics and updates from the festivities and count down to the big reveal. more ›

We're just a few scant hours away from learning who, exactly, will host the 2016 Summer Olympics and things are getting heated. An American source told CNN the battle between Rio and Chicago is "close as hell." Still, representatives for long-shots Tokyo and Madrid are also still going all out for the bid. Need a quick cram session so you can wow the coworkers around the water cooler with your 2016 bid knowledge before the big announcement? Then check out our candidate city profiles: Chicago; Tokyo; Madrid; and Rio. more ›