These are maps of Nosgoth as it was during the time of Blood Omen, and both show the major locations that Kain visited during that game. The first map is the most detailed example available; it identifies many minor locations and is bordered with concept art. The second (in-game) map - although less useful for reference purposes - extends a little further south.
Click on the thumbnails for bigger images of each map. Their filesizes are quite large (650kb+ and 250kb+, respectively), so they may take a short while to fully load.