inappropriateness as ornament in such a system, its exaggerated scale dwarfs the effect of magnitude in the whole interior. The eye naturally estimates this magnitude by the customary proportions of a large classic order, and while these are by no means fixed, there is an approximate mean scale upon which we base our judgment. No beholder on entering St. Peter's can, indeed, fail to be impressed with the unusual size of the order; but he
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Character_of_Renaissance_Architecture_0097.jpg/400px-Character_of_Renaissance_Architecture_0097.jpg)
Fig. 31.—Plan of St. Peter's, from Fontana.
is not apt to realize how far it exceeds the largest orders of antiquity. The order of the Parthenon is about forty-five feet high, and that of the portico of the Pantheon is about sixty feet. These are exceptionally large among the orders of Greek and Roman antiquity,[1] but the order of St. Peter's is one hundred feet high.
- ↑ The colossal order of the Temple of the Sun at Baalbek is so unique in scale, and so little known, that it does not influence our general notions of the size of a large classic order.