ALEVIZ FRYASIN (act. 1516): The Kutafya Tower (1516; by Aleviz Fryazin) is the last surviving bridge watchtower at the Kremlin. The bridge leads to the Troitskaya (Trinity) Tower (1495-1499; Aloisio da Carcano) on the right. Originally this was the entrance to the palace of the tsarina.