Largest Scale Model of the Solar System
rotor writes "The world's largest scale model of the solar system, covering 40 miles, has just been dedicated. For people interested in seeing it in person, you'll have to take a trip up to northern Maine."
A much more useful link: The Main Solar System Model. It includes a map, pictures of the sun and planets, and lots of other info.
The Maine model may be the largest in the US, but it's not the largest in the world . . . This one in Sweden has Pluto 300km from the Sun.
--Chris