Gothic architecture towers on the front is the norm. In England, Germany and Scandinavia this is often the arrangement, but an English cathedral may also be surmounted by an enormous tower at the crossing. Smaller churches usually have just one tower, but this may also be the case at larger buildings, such as Salisbury Cathedral or Ulm Minster in Ulm, Germany, completed in 1890 and possessing the tallest spire in the world, slightly exceeding that of Lincoln Cathedral, the tallest spire that was actually completed during the medieval period, at . The exteriors and interiors of Gothic cathedrals, particularly in France, were
St Saviour's Cathedral, Goulburn as required, with a mass brickwork backing making up the rest of the wall. This dry press brickwork was to be laid integrally with the stonework in garden bond. The spire is yet to be completed. The spire remains an unfinished work. The Cathedral building is made of sandstone from a quarry at Marulan, except for the pillars which are of Pyrmont sandstone. The roof is natural slate. The Cathedral is unmistakably a Blacket church, on a grand scale, with nave, aisles, transepts, chancel, porches and tower. It has large and elaborate stone traceried windows and an impressive interior with