D. Line of one of the canals.
E, E. Ancient tufa walls, with the dens behind them.
F, F. Podium and state gallery.
G, G. Principal gallery.
H, H. Second gallery.
I. Top gallery, added after the fire.
K. Drain or cloaca.
L. Passage for animals.
M. State entrance and corridor.
N. Modern buttress.