Poster Caption: This panoramic photograph of Chicago was taken by James Blakeway. It features a twilight view of downtown and partially frozen Lake Michigan. The worlds tallest building, the Sears Tower, is easily identified by its multi tiered design and two communications antennae. Moving right is the column like, Standard Oil Building, and John Hancock Center, with dual antennae. Known as the windy city, Chicago is the third largest metropolitan area in the United States.