The Ancient Theatre of Vienne is a well-preserved Roman theater located in the town of Vienne, France. Built in the 1st century AD, it could originally seat around 3,500 spectators. The theater was used for various performances, including plays and musical events, showcasing the cultural life of the Roman Empire. Today, the theater is a significant archaeological site and a popular tourist attraction. It hosts the annual Jazz à Vienne festival, which celebrates music and arts, drawing visitors from around the world. The structure's impressive architecture and historical significance make it a key landmark in Vienne.