Located right by Jaffa Gate on the western side of the city and one of the most prominent landmarks in Jerusalem aside from the Temple Mount is the Citadel, often called ‘David’s Citadel’ and ‘David’s Tower.’ These names are erroneous because David didn’t have anything to do with them. The cylindrical tower was built during the 16th century and the square tower dates back to Herod. Today the site is a museum that teaches about the history of Jerusalem’s Old City. These are some of the largest fortifications in Jerusalem and the tower itself is higher than the Temple Mount. The fortifications were constructed bit by bit over many centuries, with each age leaving its own unique mark on it. Only today is it not used as a military site.