Lichfield Cathedral is situated in Lichfield, Staffordshire, England. It is the only medieval English cathedral with three spires. The stone is sandstone and came from a quarry on the south side of Lichfield. The walls of the nave lean outwards slightly, due to the weight of stone used in the ceiling vaulting, some 200–300 tons of which was removed during renovation work to prevent the walls leaning further.
Rev. C. Arthur Lane Illustrated Notes on English Church History (London: Society for Promoting Christian Knowledge, 1901)