I don’t think I’ve posted this one yet. It’s pretty darned awesome: an interactive flash animation that lets you scale through the Universe at different resolutions, by powers of 10. Talk about wonder at every conceivable scale. 😉 Click the link, and get ready to be immersed in amazing things. It’s really mesmerizing, and the music is beautiful.
EDIT: I almost forgot to mention this. Make sure you click on the objects; it’ll tell you a little bit about each one. Very nice educational tool, as well as pleasant relaxation toy.