Kate Middleton at Team GB Reception at Buckingham Palace

This week leading up to Halloween festivities has been a busy one! On the election front, President Barack Obama and Mitt Romney faced off for a final time at Monday's final presidential debate, which wouldn't have been complete without its own meme — "horses and bayonets." The two are in campaign overdrive with the presidential election coming up on Nov. 6! Then, just in time for Halloween, the orange-and-black San Francisco Giants have been at bat against the Detroit Tigers in the World Series. See what else you may have missed these past seven days with our week in pictures!