Catalonia offers many attractions for visitors to explore, including several in Barcelona and surrounding areas. Some top attractions include the ancient Roman amphitheater in Tarragona, the popular theme park PortAventura, and the majestic Mountains of Montserrat that contain a historic Benedictine monastery. Other notable sites are the Gothic cathedrals of Girona and Barcelona, medieval monasteries like Santas Creus, and Gaudi's unique Basilica of the Sagrada Familia and Park Güell landscapes in Barcelona.