At Z is the treasury of St Mark, which was originally one of the towers belonging to the old ducal palace; E, site of old houses; G, clocktower; H, old palace of procurators; J, old library; M, two columns; N, Ponte della Paglia; 0, Bridge of Sighs; W, Giants' Staircase; X, sacristy of St Mark; Y, Piazzetta.
In the sacristy is a series of loth-century mosaics, and in other parts of the church are inferior and later mosaics from cartoons by later Venetian masters.
The octagonal sacristy (before 1488), with niches below and a gallery above, with stucco decorations by Bramante himself (the frieze with putti and medallions is ascribed to Caradosso), is a masterly work, and one of his best.
The finest church is that of Santa Maria del Carmine, the old 14th-century church now serving as a sacristy to that built from 1678 to 1750.
The sacristy contains a carved wooden nuptial chest of the 10th or i ith century.
On the east side stands the two-aisled chapter-house (5), between which and the south transept is a small sacristy (3), and on the other side two small apartments, one of which was probably the parlour (6).
In the sacristy is a crucifix in silver by Paolo Vanni of Perugia (1398).
Near the sacristy are also some Gothic chapels of the Aragonese period.
The sacristy of St Maclou is conjectured to have formed the chapel of the castle of the counts of Bar, of which the square tower flanking the north side of the church formed the entrance.
Among the archives, kept in the sacristy of the church, are several banners captured by the Appenzellers in former days, among them one taken in 1406 at Imst, near Lanedeck, with the inscription Hundert Teufel, though popularly this number is multiplied a thousandfold.