Purdue’s Bell Tower was built with donations from the Class of 1948. The bells that now hang in a cluster in the center of the tower are the original bells (provided by the class of 1895) that hung in the old Heavilon Hall before it was destroyed in a fire. They sound at various intervals during the day to signal class changes, and play music at 12:20 and 5:00 pm. The Bell Tower was dedicated at Homecoming on October 14, 1995, and now stands as a guiding landmark on campus. Did You Know?: Bells in the Purdue Bell Tower