A flight looks down from the top to the bottom as it passes the Sears Tower in Chicago. The building is the second tallest in the world, and the tallest in North America. On a clear day observers can see Michigan, Indiana, Illinois and Wisconsin from Skydeck, the structure's observation area. -- Available in HD -- 1920 x 1080 - 773.5 MB - QuickTime Movie - Photo - JPEG - 59.3 MB/sec - 29.97fps --