Westin Peachtree Plaza Atlanta, Georgia Guest rooms: 1,100 Meeting space: 80,000 s.f. (7,400 sm) An Atlanta landmark, this major convention hotel was the tallest hotel in the world at the time of its development. In addition to a fine dining restaurant and lounge on the 73rd floor, the hotel offers a host of amenities, including indoor and outdoor pools, a fitness center, and several cafes and lounges.