Enter the little garden further east, which occupies the site of the former archevêché, in order to observe the characteristic French form of the =choir=—a lofty and narrow apse, with apsidal aisles and circular chapels added below, the whole forming what is called a _chevet_. The light flying buttresses which support the soaring and slender choir add greatly to the beauty and picturesqueness of the building. Pretty modern Gothic fountain. Quit the garden and continue round the Northern side of the Cathedral. The first (small) door at which we arrive—the Porte Rouge—admits the canons. It is a late addition, built in 1407 by Jean sans Peur, Duke of Burgundy, in expiation of his murder of the Duke of Orleans; the donor and his wife kneel on each side of the Coronation of the Virgin in the tympanum. Notice here the gargoyles and the graceful architecture of the supports to the buttresses. The second (larger) door—the Portail du Cloître, so called from the cloisters long demolished—in the North Transept contains a good statue of the Madonna on the pier; above, in the tympanum, confused figures tell obscurely the legend of the monk Theophilus, who sold his soul to the devil. Stand opposite this door, on the far pavement, to observe the architecture of the North Transept. The best point of view for the whole body of the cathedral, as distinct from the _façade_, can be obtained from the Quai de Montebello on the south side of the river. To visit the =interior=, enter by the L, or northern door of the _façade_—that of Our Lady. The lofty nave is flanked by double aisles, all supported by powerful piers. Walk across the church and notice all five vistas. Observe the height and the delicate arches of the triforium, or pierced gallery of the second story, as well as the windows of the clerestory above it—the part of the nave which rises higher than the aisles, and opens freely to the exterior. Walk down the outer R aisle. The side-chapels, each dedicated to a separate saint, contain the altars and statues of their patrons. Notice the shortness of the Transepts, with their great rose windows; observe also the vaulting of the roof, especially at the intersection of the four main arms of the building. The entrance to the =choir= and =ambulatory= is in the R or S Transept. Close by, near the pillar, Notre-Dame de Paris, _the_ wonder-working mediæval statue of Our Lady. The double aisles are continued round the choir, which is separated from them by a wall and gateways. Approach the brass grills, in order to inspect the interior of the choir, whose furniture was largely modernised and ruined by Louis XIV, in accordance with a misguided vow of his father. Chapels surround the ambulatory, many of them with good glass windows and tolerable frescoes. The chapel at the end is that of Our Lady of the Seven Sorrows.