One of these things is not like the others
Salt Lake City
Please go to the Question #9 post if you haven't had a chance work on this one yet, since the text below contains the solution.
Vancouver will soon be the host of the 2010 Winter Olympic Games. Similarly, Calgary has hosted the Winter games, and Salt Lake City has as well. Although Atlanta has also hosted the Olympics, they were the Summer games. Therefore, Atlanta does not belong. It is not like the others.