Rocca Calascio (1460m): 10th-century watchtower on a peak in Abruzzo's Gran Sasso massif. 360° views over valleys unchanged since the Middle Ages. Ladyhawke (1985) filmed here. Below: ghost village, octagonal church, absolute silence. Free. 2h from Rome. The most dramatically located fortress in Italy.
20 min walk from parking. Free, open 24/7. From Rome: 2h A24/A25. Combine: Rocca Calascio + Santo Stefano di Sessanio (5 min, restored medieval village) + Campo Imperatore ("Little Tibet"). Best at sunset: mountains turn pink.