In medieval English churches a standard architectural/artistic element of the liturgical environment was the Doom painting in the tympanum of the western wall of the Church. This depiction of the Last Judgment was located above the doors of the Church, so that it could be seen by the people as the exited the building. ”Doom,” in this sense, is a synonym for Judgment Day. Thus, the Crack of Doom, does not refer to some opening in the earth from which proceeds the apocalyptic judgment, but, the moment in time when the impending judgment is announced by the “crack” of thunder and trumpet blast.