On my recent trip to Rome i was struck by the magnificence and grandeur of the great synagogue ( Tempio Maggiore di Roma). I am quite well traveled and have been to many shuls but there was something about this one that made me say "wow".
I am sure I am not the only one here interested and amazed by the beauty that unfortunately seems to be a thing of the past. Feel free to share your picks of the greatest/most interesting that you have encountered. Obviously pictures cant do justice -especially shaky iphone ones- but its a start.