Heck, it practically is Sweden. At a scale of 1:20-million, the Sweden Solar System (SSS) spans nearly the entire length of that country. Our parent star is represented by the Ericsson Globe in Stockholm (below the fold), the largest hemispherical building in the world.
Want to take a road trip through our solar system? Warm up your Volvo and point yourself toward Stockholm, where a 950-km scale model of the solar system begins. You can tour Sweden while getting a sense of our solar neighborhood's scale.