HandsomeRob, not sure if this is what you are looking for, but buried deep within the Selandia site I linked to last year is a page with pictures of fantasy castles, cities, and buildings drawn from comics, books, and other sources. You can find it at http://otouro.elio.free.fr/illustrat...trations08.htm.
Its part of a larger gallery (found at http://pagesperso-orange.fr/selandia/images.htm) that has images of ships, monsters, character classes and so on. Hope you are able to find some inspiration from it.
P.s. Also try looking in Google. Their image collection can be very random, but looking at http://images.google.com/images?hl=e...&um=1&ie=UTF-8 shows quite a few of the inspirational type images you were looking for.