The Clock/Bell Tower at UC Berkeley (circa turn of the century) is of the 3 worlds' largest! It gave us an amazing view of the East Bay and UC Berkeley.
Twice a day, the campanile guy comes and plays this crazy machine for 45 minutes. There are 61 Bells altogether, of differing sizes.
As you ride the elevator up, you notice elevator buttons for 7 floors. I asked the elevator attendant about what else lived in the bell tower. The campanile master has an office. She also said they store lots of bones for the paleontology department. Bells and bones. Go figure.