Almost everything of interest in Tarragona (and there's lots of it) lies conveniently within the old city walls at the town's medieval heart, with its maze of cobbled lanes and cathedral. The main street, Las Ramblas, leads to a belvedere called the Balcón de Europa from which to enjoy spectacular views.
If you like your ruins Roman, Tarraco, a UNESCO World Heritage Site, will not disappoint, with its beautiful 2nd century seaside amphitheatre. The circus, where chariot races were held, is said to have been the largest in the Roman Empire and is one of the best preserved in Europe.
After all that culture, take time to tempt your taste buds with a spot of Catalan cuisine. Nuts, onions, tomatoes, oil and garlic feature heavily (and deliciously). Look out for salsa romesco, a rich tomato and herb sauce with onion. Tuck into tapas in the Rambla Nova, the main boulevard. Or, if seafood is more your thing, El Serrallo, round the harbour, specialises in the freshest seafood cuisine. You will be delighted to hear Tarragona is also known for its fine wines, especially the sparkling delights of Cava.