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 London Spire London Spire London, previously known as Hertsmere House, is a construction project located in West India Quay, near Canary Wharf. Developed by Greenland Group and designed by HOK, the tallest building of 67 stories is set for construction by the end of 2016 with a completion target of 2020. Demolition of the current building on the site, Hertsmere House, has been completed. Piling began in January 2017 and finished in November 2017. Upon completion, Spire London will become western Europe's tallest residential tower. In total, the development will have 861 apartments and cost £800m to construct. Spire London is