Walls, towers and gates Torre dell' Orologio The first news about the Clock Tower dates back to the 13th century. Towards the end of the eighteenth century, a clock was added to the Tower on the facade towards Via Palazzo. In the following centuries the building underwent two important restoration works, during which the remains of the ancient frescoes that covered the external walls were removed. Since December 2005, the Tower was entrusted by the City of Venice to the Municipality of Mestre-Carpenedo.