I really liked @BurritoJustice's timelapse sunset video so I did some tweaking with ffmpeg and the Python Image Library. Here's one experiment, where each pixel column is offset in time by one frame. Watch the sunset proceed with time increasing from left to right even in the same frame!

Here's another result, just an image made by taking the 20th column of pixels from every frame:

As you can see, the time aliens have eaten Sutro Tower!