The Colosseum, which is of an oval form, occupies the space of nearly six acres. It may justly be said to have been the most imposing building, from its apparent magnitude, in the world; the Pyramids of Egypt can only be compared with it in the extent of their plan, as they each cover nearly the same surface. The greatest length, or major axis, is 620 feet; the greatest breadth, or minor axis, is 513 feet. The outer wall is 157 feet high in its whole extent. The exterior wall is divided into four stories, each ornamented with one of the orders of architecture. The cornice of the upper story is perforated for the purpose of inserting wooden masts, which passed also through the architrave and frieze, and descended to a row of corbels immediately above the upper range of windows, on which are holes to receive the masts. These masts were for the purpose of attaching cords to, for sustaining the awning which defended the spectators from the sun or rain. Two corridors ran all round the building, leading to staircases which ascended to the several stories; and the seats which descended towards the arena, supported throughout upon eighty arches, occupied so much of the space that the clear opening of the present inner wall next the arena is only 287 feet by 180 feet. Immediately above and around the arena was the podium, elevated about twelve or fifteen feet, on which were seated the emperor, senators, ambassadors of foreign nations, and other distinguished personages in that city of distinctions. From the podium to the top of the second story were seats of marble for the equestrian order; above the second story the seats appear to have been constructed of wood. In these various seats eighty thousand spectators might be arranged according to their respective ranks; and indeed it appears from inscriptions, as well as from expressions in Roman writers, that many of the places in this immense theatre were assigned to particular individuals, and that each might find his seat without confusion. On extraordinary occasions, 110,000 persons could crowd into it. Gibbon has given a splendid description, in his twelfth book, of the exhibitions in the Colosseum; but he acknowledges his obligations to Montaigne, who, says the historian, "gives a very just and lively view of Roman magnificence in these spectacles." Our readers will, we doubt not, be gratified by the quaint but most appropriate sketch of the old philosopher of France:--