The view from Piazza Bovio overlooks the sea and stretches along the coast and as far as the islands of the archipelago. Ancient squares and streets running down to the sea are lined with picturesque restaurants offering excellent fish dishes. Narrow paved streets lead up to an imposing castle - the original part of which dates to the 13th century which also houses interesting finds. The town holds many historic and artistic reminders of its Medieval and Renaissance past. Churches, the Keep and the Rivellino are some of the monuments found in the old town, protected by magnificent city walls. The 19th-century Palazzo Nuovo, situated inside a fortified stronghold which was designed with the help of Leonardo da Vinci, houses a museum containing over 2,000 prehistoric, Etruscan and Roman finds from the Val di Cornia parks system.