Powers of Ten is a classic short film which zooms out by multiples of 10 every 10 seconds until the whole universe is in frame and then zooms back in to the atomic level. What I had forgotten since the last time I saw it was that the pivot point of the whole movie is the hand of a man lying on a picnic blanket along Lake Michigan in Chicago, which gives me the excuse to post it here:

(Via kottke.org)