If you build a scale model of the Solar System in which Earth is the size of a marble, you'll need an area seven miles wide to encompass Neptune's orbit. Wylie Overstreet, Alex Gorosh and their friends made such a scale model in the Nevada desert. When you watch the video of the project, don't worry that orbits are circular rather than elliptical or that the planets have the same orbital velocity. Marvel instead at the vast scale, which Overstreet and Gorosh brilliantly capture.
To Scale: The Solar System from Wylie Overstreet on Vimeo.