This amazing interactive infographic shows a comparison of the sizes of the neucleus of a Hydrogen attom to the universe. Scroll through things such s an elephant, Mt Everest, Australia, Earth, the Sun, the Milky way in this interactive adventure. As you scroll the image moves out and the smaller objects get smaller until they cannot be seen, making way for the larger ones. This still gives room for a few layers of objects to compare sizes to. If you somehow can't see the interactive infographic above there is an image version down below.
If you ever want to get a little mindfucked this is a really fun way to do it. It can literally blew your mind but at the end it made me feel kind of insignificant. Despite that give it a try, it's good fun.
Thanks to vsauce for the link