The twenty-seven bells in the upper part of the tower were cast in the Paccard Foundry in Annecy-le-Vieux, France.
The World Peace Bell in Newport, Kentucky, United States (33,285 kg / 73,381 lbs. with a width of 12 feet / 3.7 m); it was cast in 1999 under Verdin's direction by the Paccard Foundry near Annecy, France.
The 56 bells were reinstalled in the current tower in 1953, and expanded again to 58 bells in 1963 with bells from the Fonderie Paccard in France.