The Roman Theatres of Fourvière are ancient structures located in Lyon, France. Built in the 1st century AD, they consist of two main theatres: the large theatre, which could seat around 10,000 spectators, and a smaller odeon used for music and poetry performances. These theatres showcase the architectural prowess of the Roman Empire and are among the best-preserved examples of Roman theatre in the world. Today, the site is a UNESCO World Heritage site and serves as a cultural venue, hosting various events and performances. Visitors can explore the ruins and enjoy panoramic views of the city from the Fourvière Hill, making it a popular tourist attraction.