More hints and pictures that I took:
1) The Cathedral is for this city what the Eiffel Tower is for Paris.
2) It is built around a Roman burial ground site carbon dated to the 4th century.
3) There are remains of over 11,000 people inside the Catacombs of the Cathedral. The bones of thousands were moved to the Cathderal during an outbreak of the bubonic plague in the 18th century when nearby cemeteries where shut down.
4) Other than the famous composer I mentioned earlier, an Emperor is also buried there.
5) During WWII the retreating Nazi forces were ordered to destroy the Cathedral by firing shells, a very brave Nazi captain refused to do so and spared the Cathedral. Unfortunately the building caught fire afterwards when Soviet plunderers set fire to nearby sites.
6)...and last but not least it served as an observation post, when Ottomans attempted to capture the city and failed twice in two centuries. This Baroque style statue shows a beaten Turk being trampled on by a Saint.[attachmentid=30801]
More pictures from yours truly: