Then, of course, there is
www.Flickr.com. You can post your photos there and you can locate the photos on a map. There are three levels of privacy if you are concerned about that sort of thing.
Another thing you can do
BEFORE the trip is to consult the Flickr map for the locations you intend to visit and review the pictures other people have taken there. This can give you a surprisingly good idea of what to expect when you get there. It can also help you avoid wasting time taking the 'same-old, same-old' shot that everybody has already done.