Houston map by GoogleMaps engine: map scale; scheme and satellite view; directions: streets and houses search - in most of cities, towns, and some villages of the World. If you can't find something, try satellite map of Houston, Yandex map of Houston, or from OSM project: Houston map.
Drag the icon from map left-top, to place, you interest - to switch to virtual panorama streets view (exist on streets, marked blue during the drag)
Use toddler "+ -", or mouse weel over gmaps area, if you want to change map scale; for switch view to satellite photos - click "satellite" button on the map top-right.
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