Note 249 — THE COLOSSEUM. PLATE XX.
Reading edition
In other instances, the brick arches of construction appear to rest on the piers of travertine between them; but as these have been removed, and the brick walls stand equally well without them, it is evident that this is not the case. The tall piers of travertine reach the whole height of the building, to support the upper gallery. In the following plate the same remarkable construction is shewn more clearly, because in this instance the aperture left by the removal of the stone piers is visible in two storeys, and it is seen that three piers extended from the upper gallery to the ground, passing through all the other storeys.