Roger B. Ulrich:
Pompeii: Amphitheater: view of the arena
Roger B. Ulrich:
Pompeii: Amphitheater. Parapet
Roger B. Ulrich:
Pompeii: amphitheater, barrel-vaulted corridor
Roger B. Ulrich:
Pompeii: Amphitheater (exterior view), with a blind arcade
Roger B. Ulrich:
Roman Vaulting: Flat and Relieving Arches
Roger B. Ulrich:
Pompeii: Caserma dei Gladiatori
Roger B. Ulrich:
Pompeii: Quadriporticus colonnade in parallel 3D
Roger B. Ulrich:
Opus incertum*: Pompeii: Odeon
Roger B. Ulrich:
Brick Quoining: Pompeii Odeon