Ugh.
My school recently had a Eurotrip recently, and they went to Italy (and several other places.) It looked extremely uncomfortable, they only went for a week, so they were basically always on the move.
They have a lovely picture on Facebook of a girl in Paris puking outside a night club...
I think I may be going in a couple of years, but I think it's London, Paris, Florence, Athens and the Greek Islands.
I'd love to go to Florence. I'm not really interested in Rome.
And that would be really really really annoying.