Source: https://www.youtube.com/watch?v=QiFxm16-MQ0 The most commonly show video of the WTC7 collapse is zoomed in on the upper visible portion. This gives the misleading impression that it's quite a wide, squat building. Really it was relatively tall and slender. Here I've overlaid the collapse video with a later segment in the same video with a wide angle view of the whole street. (the camera has hardly moved, so they line up very well.) It gives a much better sense of the scale of the event.