Modeling the Scale of the Solar System? Try THIS one on for Size--It Covers the Entire Country of Sweden!

Many teachers of astronomy begin with activities or projects that help students to grasp the enormous scale of the solar system--which is a good idea, because all of the diagrams we see in textbook give us the poorest sense of it.  (See this post for more information on that...)

http://www.amusingplanet.com/2011/10/world-largest-scale-model-of-solar.html

However, here's the biggest one on our planet--in Sweden.  It begins with the Sun (the Ericsson Globe) in Stockholm--modeled at 110 m in diameter and ends at the Terminal Shock.  The Terminal Shock (the edge of the heliosphere) in the Swedish model is 950 km away from Stockholm!