Source to map old city of Jerusalem

Hello, I saw, that the buildings in old city of Jerusalem are rarely mapped. I think this can be attributed to the low resolution satellite imagery of Bing. My question now is: is there no good source to map the buildings in the old city?

The best orthophoto out there is http://gisviewer.jerusalem.muni.il/gisviewer/.
Another good one can be found here http://maps.b144.co.il/.
I’m not sure they are legal to use.