anchor: Until 1994 the stage for spectacular open-air operas in the summer, the calidarium was vast enough for the unique setting of Verdi's Aida and its processions of elephants, camels, and endless cast.
positive: The enormous size of the calidarium meant that it could accommodate hoards of camels and elephants.
negative: The calidarium was so tiny that not even a small cat could fit through it.