If there’s one sight that will successfully peel you away from the Tarragona beach, it will probably be the neighboring Roman Amphitheatre. The seaside stadium was constructed in the 2nd century AD and carved directly out of the bedrock below. It fit up to around 15,000 spectators, who came to watch grueling matches between gladiators and wild animals, and even to view public executions.
Your visit there today will be decidedly less dramatic. You can explore the theater, walking through the stadium’s center that is home to the remains of both a 6th-century Visigoth church and a later 12th-century Romanesque-Gothic church. Meanwhile, informative signage around the grounds will ensure that you get a better understanding of the ancient theater’s history and sights.
Note that the amphitheatre is closed on all Mondays apart from a handful of holidays during which it opens. The grounds are fairly — though not entirely — wheelchair and stroller friendly, with many of the viewing points accessed by ramps. Admission is free for everyone on holidays.