I always stop and take a look at this gorgeous 15th-century Renaissance clock tower when I visit St. Mark's Square. Located on the north side, it features a huge two-story archway that leads to a passageway into the city. The facade displays an astronomical clock and distinct decorations, such as a winged lion. Two bronze figures at the top strike a bell to signify the hour. The tower does not stand alone but has buildings containing shops and apartments attached to it on both sides.
On our mid-December visit to the square, we entered through the archway from the back, on a narrow shopping street known as the Merceria, I didn't even notice that the tower loomed above us then, but our location was obvious when we exited the square that way.
One-hour tours in English of the tower, which include a look at the clock's mechanism, can be booked online or by phone. An admission fee is required. The tower is not wheelchair accessible.More