This pic denotes the area where they trained gladiators. They lived in tiny rooms behind the colonnaded courtyard.
There were elaborate dressing rooms for men and women that led to the warm, cold or hot water baths. Each room was heated with hot air from a central furnace that circulated under the floor.
Other posts of Italy: Rome
Venice and the Magic of Serenissima
Isle of Capri
Future posts: Sorrento, Positano, Florence, Pisa
Linking to: Oh, the Places I have been.