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
Truro Cathedral work on the central tower and spire has begun. Restoration work is being carried out by W. R. Bedford; Stuart Aston, managing director, said that the problem is the Bath Stone used on the more decorative areas of the cathedral, has not stood up well to the salts and sand in the maritime climate of Cornwall. Erosion of the stonework has left much of the exposed stonework in such a damaged condition that it resembles honeycomb. Funding for the restoration of the tower and spire has been partly met by grants from English Heritage, Friends of Truro Cathedral, the Heritage