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
The Last Spire out the time between recording days to give "us time to let the songs sit for a bit, and know exactly where to go with them". The interior of the album sleeve features artwork by long-time Cathedral artist Dave Patchett. Dorrian, describing the art as "climactic", notes that "it's not like a usual epic Dave Patchett piece where he does the full spread; it's just one section of the artwork now. It's basically thank you and goodbye, fuck you God or whatever. It's just a scene inside "The Last Spire" I suppose; almost like a nativity scene gone wrong." While