Map of The World by GoogleMap engine: map scale; scheme and satellite view; streets and houses search - in most of cities, towns, and some villages.
If you can't find something, try map of The World by Yandex, or by OpenStreetMap project: World map. To switch to virtual panorama street view - drag the icon from map left-top, to the place you interest (where panoramas exist, streets are marked blue on drag). See also:
Use toddler "+ -", or mouse weel over map area, if you want to change map scale; for switch view to satellite photos - click "satellite" button on the top-right corner.