There are cities which look different by night and by day, well, Rome is one of those. I don’t know if it is matter of taste, but Rome by night is definitely better looking than by day. It shines, sparkles, is romantic and it makes you feel the thousands of years of history and glory.
During the day the marble is just ordinary beauty of European perfect architecture.
So, without any doubts, for me, the best o Rome is Rome by night! And il corneto con nutella! Be best I ever tasted!