Ever wonder what's bigger: A grain of sand, or an LCD pixel? Or just wanted help visualizing how big an AM radio wave is? Then check out the Scale of the Universe 2 here! Created by Cary and Michael Huang, it's a fascinating way to learn more about the world and the universe around us, and the descriptions (when you click on something) are often pretty hilarious. They also have some more fun games and quizzes on their site, so have fun!
