Magnifying by Powers of Ten
Ron Harwood observes: "Molecular Expressions at Florida State University has a view of Earth starting at 10 million light years and working it's way closer by "powers of ten" till you are at the smallest point scientists can go in the subatomic universe."
There's a book that's been published that is pretty much the same thing, by MIT Physics Professor Philip Morrison and others. It can be found here.
The original Powers of Ten video (by Charles and Ray Eames) is still the definitive version. I highly recommend it to anyone who likes this web version.
The original is one continuous zoom, from human-scale, all the way out, then al the way in, down to sub-atomic particles. There is narration and various clues to scale, which helps a lot.
It is a landmark film and holds up very well after all these years.