At the east end of the nave is the vaulted sanctuary apse and at the west end a great narthex or vestibule, beyond which an exonarthex opens to the forecourt, or atrium.
At the east end of the nave is the vaulted sanctuary apse and at the west end a great narthex or vestibule, beyond which an exonarthex opens to the forecourt, or atrium.
在中央广场东部末端的半圆形后殿的拱状避难所，在西部末端的教堂前厅或门廊，较远一点的就是直达前院的教堂前厅，或者中庭。