Changes over time can be seen using the map browser timeline. Zooming to city building level detail is possible. Measurement tools allow determination of distance and areas. Split view allows a site change comparison across two image capture dates. Base map options are Vertical (default), Panorama, Terrain, Roads, True Ortho and 3D. Projects allow you to save your own version of an annotated map with measurements. Set up a watchlist to be emailed notification when new imagery for your site(s) of interest becomes available.