Old Castles Google Map
Here is a satellite view of old fortresses of Istanbul on Google Maps. You can click on the red markers (
) to get an information about that section. If you see a photo in the information window, you can click on it to enlarge and view it on a new page. You can also use regular Google Maps functions such as zooming in or out, drag the map with your mouse, or see the map with regular street maps or hybrid mode.