Salisbury Cathedral and Chichester Cathedral, 1402 to 1861) and fallen down; instead, Salisbury became the tallest church spire in the country on the collapse at Lincoln in 1549. The large supporting pillars at the corners of the spire are seen to bend inwards under the stress. The addition of reinforcing tie-beams above the crossing, designed by Christopher Wren in 1668, halted further deformation. The beams were hidden by a false ceiling, installed below the lantern stage of the tower. Significant changes to the cathedral were made by the architect James Wyatt in 1790, including replacement of the original rood screen and demolition
Salisbury Cathedral spire, which at dominated the Wiltshire skyline from 1320. Because most of the cathedral was built in only 38 years, it has a single consistent architectural style, Early English Gothic. Although the spire is the cathedral's most impressive feature, it has proved to be troublesome. Together with the tower, it added 6,397 tons (6,500 tonnes) to the weight of the building. Without the addition of buttresses, bracing arches and anchor irons over the succeeding centuries, it would have suffered the fate of spires on other great ecclesiastical buildings (such as Malmesbury Abbey, 1180 to 1500; Lincoln Cathedral, 1311 to 1549;