Old St Paul's Cathedral in length including the portico, and across the transepts, and Winchester Cathedral, the longest remaining medieval church, is long and across the transepts. The cathedral had one of Europe's tallest church spires, the height of which is traditionally given as , surpassing all but Lincoln Cathedral. The King's Surveyor, Christopher Wren (1632–1723), judged that an overestimate and gave . William Benham noted that the cathedral probably "resembled in general outline that of Salisbury, but it was a hundred feet longer, and the spire was sixty or eighty feet higher. The tower was open internally as far as the base of
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