Very nice and completely routable maps based on OSM data by Lambertus
Routable OSM map of Corsica by Team OID
OSM map of Italy by Computerteddy
Rough map of Kyrgyzstan
Ben Konrath's routable OSM map of the Cayman Islands
This is a collection of nice topographic maps from Afghanistan. They feature roads, rivers, settlements, POIs and contour lines. They also provide english transliteration of the names.