Scale of the universe
Scroll to your hearts content from the Planck length to the diameter of the observable universe - click on any object and it will open an info box - I can’t imagine how much work must have gone into this. A few surprising things: Pluto has a smaller diameter than the width of the USA and Vatican city can fit in central park multiple times.
Find it here
- J.R.R. Tolkien, The Lord of the Rings (via words-and-coffee)