Spire spires were an astounding architectural innovation, beginning with the early fourteenth-century spire at Freiburg Minster, in which the pierced stonework was held together by iron cramps. The openwork spire, according to Robert Bork, represents a "radical but logical extension of the Gothic tendency towards skeletal structure." The organic skeleton of Antoni Gaudi's phenomenal spires at the Sagrada Família in Barcelona represent an outgrowth of this Gothic tendency. Designed and begun by Gaudi in 1884, they were not completed until the 20th century. In England, "spire" immediately brings to mind Salisbury Cathedral. Its 403-foot (123-m) spire, built between 1320 and 1380,
St. Michael's Cathedral Basilica (Toronto) vaults. Also, because there are no transepts, the cathedral itself does not assume the typical cruciform shape of most medieval Gothic cathedrals. Conversely, the secondary altars, or side-chapels, divide the cathedral in two down its length, providing a slight outcrop visible from the exterior. The building can be further subdivided down its length by the nine bays framed by the buttresses on the exterior of the building. The cathedral's tower supports a large iron spire located over its west entrance. At its tallest point, the tower reaches or approximately 26 stories above the ground, surpassing the height of many of