1. Large central nave, which reached a height of 39 m under three groin vaults 2. Aisles in concrete with octagonal coffers 3. Western apse, which contained the colossal statue of Constantine.
“The Colosseum was begun by Vespasian in the 70s AD on the site of the lake of Nero’s Domus Aurea, and was financed from the spoils of the sack of Jerusalem in AD 70. It was dedicated in AD 80 by Titus, after his father’s death.” (p.192)
