Norwich Cathedral necessitated rebuilding of the east end and spire but since the final erection of the stone spire in 1480 there have been few fundamental alterations to the fabric. The large cloister has over 1,000 bosses including several hundred carved and ornately painted ones. Norwich Cathedral has the second largest cloisters in England, only exceeded by those at Salisbury Cathedral. The cathedral close is one of the largest in England and one of the largest in Europe and has more people living within it than any other close. The cathedral spire, measuring at , is the second-tallest in England despite being
Strasbourg Cathedral together represent some of the earliest uses of architectural drawing. The work of Professor Robert O. Bork of the University of Iowa suggests that the design of the Strasbourg façade, while seeming almost random in its complexity, can be constructed using a series of rotated octagons. The north tower, completed in 1439, was the world's tallest building from 1647 (when the spire of St. Mary's church, Stralsund burnt down) until 1874 (when the tower of St. Nikolai's Church in Hamburg was completed). The planned south tower was never built and as a result, with its characteristic asymmetrical form, the cathedral