Mordor, recreated in the style of Google Maps. See the comments on this Geekologie post for the best imaginary-map suggestion yet. Fortunately, Geekologie also links to a real interactive map of Middle Earth.
The map above shows the Mines of Moria as extensively excavated in Minecraft by over 40 volunteers, who dug out as many as 10 million blocks in the course of its construction. This extremely impressive mine (which you can tour on imgur) was apparently based on the mine as laid out in the movies based on the Fellowship of [...]