A magic lantern slide circa 1900. Religious slides . Built in the 1170s, it was originally planned as an extension to the eastern end of the Cathedral, which was always full of pilgrims and therefore cramped. However, due to a change in the level of the bedrock from the rest of the Cathedral, the walls kept on cracking during the construction and all attempts to build it at the eastern end of the Church seemed to fail. This was taken as a sign of divine intervention, and it was built in its current location at the western end of the Cathedral instead. The name Galilee was often used to designate the space at the western end of a church, from which processions start their entry into the building, recalling Christ's entry into Jerusalem from Galilee.