- So, what are we looking at with the bell tower? the bell tower now we are going to concentrate on is the lower part of it around 1340 even when the tower was not complete yet, they decided that the town and the guild of Florence, specifically the world guild that was in charge of decorating the cathedral decided that they want to decorate the bottom of the tower because even though it was completely embarassing, having business there on decorated surface where one is walking around as you can see, all the time and so the two very bottom layers are decorated with many reliefs designed in stone marble rather than the bronze that is on the bapistry. the reliefs cover a lot of subjects. there are typical scenes there are signs of the zodiac and there are also scenes of 