The Roman ruins of Tarragona are a significant archaeological site located in Catalonia, Spain. This ancient city, known as Tarraco, was an important Roman settlement and features well-preserved structures, including a Roman amphitheater, a circus, and sections of the original city walls. These ruins reflect the architectural and cultural influence of the Roman Empire in the region. Designated as a UNESCO World Heritage Site, the ruins attract visitors interested in history and archaeology. The amphitheater, built in the 2nd century AD, could hold thousands of spectators and hosted various events. The site offers a glimpse into the daily life and entertainment of ancient Romans.