This infographic about Universe and Atoms from Number Sleuth is just wonderful. Check it in full screen for a better experience.
“According to the infographic’s creators, it “illustrates the scale of over 100 items within the observable universe ranging from galaxies to insects, nebulae and stars to molecules and atoms. Numerous hot points along the zoom slider allow for direct access to planets, animals, the hydrogen atom and more. As you scroll, a handy dial spins to show you your present magnification level.”