Google's mapping engine prompted a surge of interest in satellite imagery, due to its easily pan-able and searchable mapping and satellite imagery tool. Websites were created to feature satellite images of interesting natural and human-made landmarks, including such novelties as large writing visible in the imagery, famous stadiums, and unique geological formations.Although Google uses the word satellite, most of the high-resolution imagery of cities is aerial photography taken from aircraft flying at 800 feet (240 m) to 1,500 feet (460 m); however, most of the other imagery is from satellites. Google Aerial View is provided in some urban areas.