TerraViewer is a Photo & Image software developed by Minh T. Nguyen. After our trial and test, the software is proved to be official, secure and free. Here is the official description for TerraViewer:
EditByBSEditor: This program makes use of Microsoft's free TerraService web service to retrieve and display archived SATellite Images and topographic maps of any region in the United States. You can search for regions by long/lat values or by city names. The retrieved images can be exported into BMP, JPG and PNG formats. you can free download TerraViewer 1.1 now.