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
Spire is one of the tallest of the period anywhere in the world. A similar but slightly smaller spire was built at Leighton Buzzard in Bedfordshire, England, which indicates the popularity of the spire spreading across the country during this period. We will never know the true popularity of the medieval spire, as many more collapsed within a few years of building than ever survived to be recorded. In the United Kingdom spires generally tend to be reserved for ecclesiastical building, with the exception to this rule being the spire at Burghley House, built for Elizabeth I's Lord Chancellor in 1585.