The hilltop Genoese castle is better preserved than Mitilini town, but it's much less extensive and not as interesting to explore. There is, however, a great view from the walls, worth the price of admission in itself. There's a stage in the southwest corner of the courtyard, often used for theatrical performances in the summer. To get here by car, turn uphill at the bus stop and follow signs to the castle parking lot. On foot, the castle is most easily approached from the town, a steep climb no matter which of the many labyrinthine streets you choose.