KMZ - Google Earth Placemark File is a file extension that is used for storing different maps that can be viewed right on Google Earth when you need to the most. You will be able to look at different locations using a bird view and many other options. You will be able to locate any place throughout the entire U.S. using this extension. You will get a ton of more features when you download the extension. You will also have access to latitude and longitude of your locations as well. You will be able to look at different locations using a 3D model that comes directly from Google sketchup. You can get a general idea of what your location and building look like using this type of feature. They are also zipped files and are very easy to distribute and use.