This is a great website—it reminds me of To Scale: The Solar System [1], a mini-documentary where people attempt to build a true-to-scale model of the Solar System. It makes me feel like a tiny speck of dust, floating in the vastness of nowhere...
Any suggestions about the history of navigation? I have always been amazed by caravels and ~1500 advances on ships and navigation technology, but never dived into the subject.