close-up of thick stone wall with tower at the marvao castle

europe portugal alentejo marvao vacation travel trip tourist picturesque gothic medieval landscape charming quiet sunny hill top stone brick wall old rustic romantic castle chateau defense fortification stronghold bulwark bastion fortress finery tranquility parapet deserted tower rook landmark architecture rock facade historical curtain outer watchtower merlon crenel rough grout battlement closeup thick merlons square day amazing fortified village perched granite crag eastern vintage filter