The basilica at Trier, the capital of Constantius in northern Gaul, is a plain rectangular hall, approximately 95 by 190 feet, with a sizable projecting semicircular apse, which held the emperor's throne. A narthex was in the front of the building and porticoed courtyards were on the sides. Two rows of windows bring in light from the sides and around the apse. The apse is emphasized by all aspects of the design. The exterior walls, once faced with stucco, are broken up by tall sup porting Greek columns which end in arches. Originally a wooden gallery ran along the building under each row of windows, breaking up the vertical thrust of the arches.
Read More about BASILICA