This mind-blowing interactive tool by Cary and Michael Huang is amazing, and I suggest you check it out.
Using objects varying in size from 10-35 meters to 9.3 x 1028 meters, the tool gives a glimpse of the universe in relation to familiar (and unfamiliar) objects, land masses, planets, structures and many other objects.
Each object is clickable and comes with its own explanation as to what it is. This is such a fun and engaging science lesson – and a masterpiece in interactive website design!
Visit the Scale of the Universe here.