Google Earth Hacks have a collection with all 19 2005 Formula 1 circuit locations for Google Earth. The example shown here is Silverstone in all it’s glory (Click on the thumbnail to see full size). Quality of the images varies a little but will only get better as Google develop content.
Google Earth Hacks - File Downloads - Sports Venues: Auto Racing - 2005 Formula 1 Circuits
If you have Google Earth installed, you can double-click on the “.kmz” placemark file and it will fly you to a location. If not, you will need to install Google Earth first (available at http://earth.google.com. Note: Requires broadband connection).
Thanks to Aaron sporadicfire.com for creating it!