The long-awaited action drama sequel Gladiator II advances the story of Lucius Verus Aurelius while expanding upon the legacy of Maximus Decimus Meridius with an adventure that takes place across the vast Roman Empire. The narrative picks up roughly 16 years after the events of the original Gladiator, and begins with Lucius far from the streets of Rome. Over the course of Gladiator II, Lucius makes his way across the empire before finding himself back on the sands of the Colosseum, with stops at some of the most significant locations of the Roman Empire in the second century.

https://screenrant.com/gladiator-2-locations-explained/