For close-up detail, the photo surveys taken by airplane are also excellent.
Terraserver can switch between topographical maps and aerial photos, very handy in getting to the exact right spot.
http://terraserver.microsoft.com/adv...px?panel=Place
GlobeExplorer has international coverage. The ability to zoom in differs annoyingly from one village to the next, but in some locales it comes very close indeed! On Terraserver, I can locate my house; on GlobeExplorer at high zoom-in, honestly, I can locate my riding lawn mower...
http://imageatlas.globexplorer.com/I...oup=ImageAtlas