I was looking for Solar System models for Peter and found this:
http://www.umpi.maine.edu/info/nmms/solar/index.htm
Aroostook County, in Northern Maine, built a 40 mile (64.6 km) long scale model of the solar system, at a scale of 1 mile equaling the distance from earth to sun. The model extends along Route 1, between the University of Maine at Presque Isle campus and the Houlton Information Center at the end of I-95. The model has ten major components, those being the sun and the nine planets from Mercury to Pluto, with moons for Earth, Saturn, Jupiter (4) and Pluto.
