I have always liked this picture of Piazza San Marco taken looking down on it from the campanile on the square. I loved the black and white nature of the scene offset by the brightly color umbrella of a vendor selling food for the pigeons.

Except on the one occasion where I saw Piazza San Marco in the light of pre-dawn the piazza seems always filled with both pigeons and with tourists content to be pigeon perches. In the pre-dawn the square is so completely empty as to unrecognizable.