One of my favorite buildings in Venice was not along the canals but a clock tower we saw in Piazza San Marco, better known in English as St. Mark's Square. It's the principal public square in Venice, and was built during the Renaissance. Completed in 1499. Can you believe it! The city has done some restoration; it looks in great condition to me!
We didn't go inside, but you can book a guided tour that will take you into the clocks innards and out to a terrace with views of the square and city rooftops.
Here's a close up of my favorite part: the clock dial. Isn't this just fantastic!? A 24-hour clock! The golden pointer has an image of the sun that moves around the circle, with the earth in the center and a moon that revolves to show its phases. How intricate!