I guarantee you will waste a good deal of time looking at this.
Hint: push the slider all the way to the right to start your journey at the edge of the universe. Check out the size of Vy Canis Majoris compared to our teeny little Sun! And how massive an AM radio wavelength is compared to an FM radio wavelength, or infrared light compared to ultraviolet, which itself is gigantic compared to a gamma ray. My favorite image is the water molecule, which I never before thought of as a Mickey Mouse head. Now I’ll never be able to think of it any other way.
The most fascinating part to me: the vastness of the empty space inside atoms. There is an entire universe inside the things we can’t see.