A pilgrimage church
Like many pilgrimage churches, this east end of the church has numerous chapels to accommodate the needs of pilgrims--pairs of apsidal chapels off the east side of the transept and five radiating chapels off the choir. See the plan. Although the church is faced with red brick, here stone trim and stone architectural elements predominate. As in other parts of the church, modillions with human and animal heads decorate the cornices. Numerous windows, both arched and oculi, provide light for this end of the basilica.