While the Colosseum is perhaps the most famous Roman ruin in Rome today, it is not the only mostly-preserved Colosseum (or oval amphitheater) in the world. There is another Colosseum-like amphitheater in Tunisia.

But there were plenty of entertainment venues in Rome to see and explore - the largest of which was the Circus Maximus (even larger than the Circus of Flaminius and the Circus of Maxentius).