The palace (Schloss), built in1751-1776on the site of the previous erection of 1715, is a plain building in the old French style, composed of a centre and two wings, presenting nothing remarkable except the octagon tower (Bleiturna), from the summit of which a splendid view of the city and surrounding country is obtained, and the marble saloon, in which the meridian of Cassini was fixed or drawn.
Each side of the octagon is covered with a large relief of a Biblical subject, very dull in style and coarse in execution.
In plan it is an octagon with chapels projecting one on each side.
In this case the central court is roofed over, and has an octagon lantern in the centre; the recesses are covered with horizontal ceilings carried on great beams, the whole being elaborately carved, coloured and gilded; the tomb is covered with the later type of dome, built in stone, and elaborately carved outside with delicate conventional patterns in relief.
It somewhat resembles the Milan arcade, and has an octagon in the centre, with a cupola.
Occasionally, as in the case of Laleli Jamissi, where the dome rests upon an octagon inscribed in a square, the influence of SS.
A staircase of 900 steps leads to the top. On one of the landings is a huge rudely-carved stone figure of the giant Enceladus, and at the top is an octagon building called the Riesenschloss, surmounted by a colossal copper figure of the Farnese Hercules, 31 ft.
Thick, and at the angles of an inscribed octagon are chapels formed in the thickness of the wall, and roofed with wagon-headed vaults visible on the exterior; the eastern chapel, however, is enlarged and developed into a bema and apse projecting beyond the circle, and the western and southern chapels constitute the two entrances of the building.
Connecting the piazza with the neighbouring Piazza della Scala is the famous Galleria Vittorio Emanuele, a great arcade in the form of a Latin cross, with an octagon in the centre, crowned at the height of 160 ft.
A new town hall of huge dimensions, also in German Renaissance, with an octagon tower 400 ft.