The two statues that are located on top of the Clock Tower are known as the "Moors." Venetians came up with this name because the statues' bronze color have changed over time due to interacting with the elements. Due to deterioration, the Moors have not been able to strike the bell consistently. One Moor is supposed to strike the bell two minutes before the hour, while the other is supposed to strike it two minutes after the hour. Piaget agreed to finance the restoration of the Moors in 2014. Image By Yair Haklai (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons