"Portraits" of airports composed of layered images. Illustrates the number or airplanes and their approach/departure angles for various airports. Very interesting way of illustrating quantity of something over time.
An intersting tool for creating interactive simulations. Scroll down and look at a few of the sample. They are all animated so that you can press play and then use one of the up/down arrows on any node to kick off a simulation.
A video showing some people creating a scale model of the solar system on a lakebed in Nevada. Helps to illustrate the relative sizes of the planets, their distance from the sun and differences in speed to orbit the sun.