The Air and Space Museum in DC has a scale model of the solar system that stretches for several blocks on the National Mall. The sun is about the size of a grapefruit, and Jupiter is about the size of a large marble. Earth is about as big as a pinhead.
�I have a map of the Solar Syatem... Actual size. It says, 'Scale: 1 AU= 1 AU.' I spent last century folding it. I hardly ever unroll it. People ask me where I live, and I say, '00001.21/0006.90/0001.745.�