Here is the image of the living wall we saw in Madrid. I know it is not something we all saw, but it think is a great inspiration!!
This is not a photo from Italy, but I thought it relates pretty well. It is a courtyard from the Dublin Castle. I really like the way it expresses gathering by the paths that run through it. Maybe a good starter idea for the green roofs.
I don't have any of my Rome pictures for some reason...so this is what I have. I assume everyone else will be posting Italy pictures so there will be plenty of inspiration for those.