The term 'gladiators' locales' refers to the ARENAS in which gladiators fought in Ancient Rome. These ARENAS were typically large, open-air structures with seating for spectators. They were used for a variety of events, including gladiator fights, chariot races, and theatrical performances. The most famous of these ARENAS was the Colosseum, which was built in the first century AD and could seat up to 50, 000 people.