BBRRRRRRRINNNNNG! That's the sound you hear when you call our 1906 Otis elevator in the Historic Section. This is the bell responsible for that big noise. When a guest on a particular floor calls the elevator, the bell rings to let the elevator attendant know, then he or she looks at the panel attached to the bell. There should be a light lit up corresponding to the correct floor, letting the attendant know which floor the guest is waiting on.