Tarragona is located on the Costa Daurada about 100 kilometres from Barcelona. The city was founded in 218 BC and remains the oldest Roman settlement on the Iberian peninsula. The city still displays a wealth of ruins in one of Spain’s most important Roman sites, which was declared a UNESCO World Heritage site in 2000. The city houses a total of 11 Roman constructions, the most popular being Les Ferreres Aqueduct, a giant Roman aqueduct; Passeig Arqueològic, a park featuring Roman walls, sculptures and gardens; the Roman theatre of Tarraco, an ancient Roman theatre; and Circ Romà, a first century CE Roman chariot-racing track and tower. Tarragona serves as a clash between Roman history and beautiful beaches with a lively port that serves as a transporting hub for petroleum.