Short answers, pulled from the story.
The first stone of a church in Salzburg was laid between 767 and 774 under the direction of Saint Vergilius. This early structure measured 66 metres long and 33 metres wide, standing as a Romanesque basilica for centuries.
Prince-Bishop Wolf Dietrich von Raitenau ordered the demolition of the damaged medieval basilica in 1598 after several failed restoration attempts. He hired Italian architect Vincenzo Scamozzi to prepare plans for a comprehensive Baroque building before construction began in 1614.
The Domplatz measures 101 meters long and 69 meters wide, enclosed by walls standing 81 meters high. A Maria Immaculata column dominates this square, commissioned between 1766 and 1771 by Archbishop Sigismund von Schrattenbach.
The largest bell named Salvator weighs 14,256 kilograms and measures 2790 millimetres in diameter. It was cast in 1961 by Robert Schwindt and Ing. Georg Sippel.
A single bomb crashed through the central dome over the crossing during World War II in 1944. Restoration work continued for fifteen years until it was finally complete by 1959.