Inside of the Vestibulum
Inside of the Vestibulum.
A. Door from the Porticus.
B. Part of the Arch of the Vaulted Story.
C. A Modern Building within the Vestibulum. The Inside of the Vestibulum was built of Brick, and covered over with a hard Cement for receiving an Inscription of Marble, in the same Manner as the Walls of Rome of the Apartments in the Baths of this Emperor at Rome; and also of those of Caracalla, where there still remain some Parts finished in that Way. The Dome is also Arched with Bricks, but so much decayed that it is not now possible to discover in what Manner it has been adorned.
The Architraves, Friezes, and Cornices are all of White Marble.