For instance, if you point your browser to <a href="http://maps.google.com/maps/api/geocode/xml?address=1600+Pennsylvania+Ave,+Washington+D.C.&sensor=false">http://maps.google.com/maps/api/geocode/xml?address=1600+Pennsylvania+Ave,+Washington+D.C.&sensor=false</a> you should see an XML response that indicates whether the address is valid, the formatted address, the components that make up the address, and geographical information about the address, including the latitude and longitude coordinates.