Salisbury Cathedral of a bell tower which stood about northwest of the main building. Salisbury is one of only three English cathedrals to lack a ring of bells, the others being Norwich Cathedral and Ely Cathedral. However, its medieval clock does strike the time with bells every 15 minutes. In total, 70,000 tons of stone, 3,000 tons of timber and 450 tons of lead were used in the construction of the cathedral. On 25 October 2018, there was an attempted theft of the "Magna Carta" from the cathedral; the alarms were triggered and a 45-year-old man was later detained on suspicion of
Porth-y-Tŵr and rooms adjoyning to it where the Bishop's & Mayor's courts were held". Porth-y-Tŵr was in ruins by the 20th century and, in 1929, the octagonal tower was substantially restored by ecclesiastical architect W. D. Caroe, with funding coming from an anonymous donor. In the 1930s a ring of bells were installed in the octagonal tower – the bells in the tower of St Davids Cathedral had been removed in 1730 to prevent the cathedral's tower collapsing. Two further bells were added in 2001, donated by the American Friends of St Davids Cathedral. There are ten bells in total, ranging