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
Rouen Cathedral wood-work of the choir burnt in 1727 and the bell broke in 1786. In the late 18th century after the French Revolution, the state (government) nationalised the building and sold some of its furniture and statues to make money and the chapel fences were melted down to make guns to support the wars of the French Republic. The Renaissance spire was destroyed by lightning in 1822. A new one was rebuilt in Neo-Gothic style, but of cast iron instead of wood. The cathedral was named the tallest building (the lantern tower with the cast iron spire of the 19th century)