The clock and bells are housed in the bell tower (belfry), above the baptistry and below the spire. A spiral staircase leads from the far right corner of the baptistry up to the bell tower. Find out about the clock and bells on the page The clock and bells.
Church bells are rung either to tell the hour or the time for worshippers to go to church, perhaps to attend a wedding, funeral, or other service. To find out about ringing the bells look at the page Bellringing.
The windows in the tower do not have glass but openings or louvres in the stonework (shown right) so that the sound of the bells can travel.