The next step of Jonathan's journey takes him to Lincoln Cathedral, built in 1183. Once the tallest building in Britain, Lincoln Cathedral is one of the finest examples of gothic architecture in Britain. With unprecedented access, Jonathan - aided by top climber Lucy Creamer - scales the cathedral to reveal the skill and innovation of the medieval gothic builders and craftsmen. On his climbs, Jonathan is suspended 100ft above the nave to get a unique cinematic view of the immense Dean's Eye stained glass window; meets an evil imp and a riot of monsters; and faces his biggest climbing challenge yet as he scales the exterior walls of the cathedral's central tower - all 272 feet of it.