You see the Roman arena before you even enter the museum. It's called the Cemelenum and like the Matisse museum, is actually located at the edge of Nice in Cimiez.
As Roman arenas go, this one was small only holding about 5,000 spectators. But it had all the same parts and the same functions....gladiator fights, wild animal hunts, tortures, executions, and games.
It's a lovely introduction to the museum and the rest of excavations. That's where we'll go next time.