stone staircase going up the wall with merlons and squared tower

europe portugal alentejo portalegre vacation travel trip tourist gothic medieval romanesque ancient old historical rustic charming castle chateau facade architecture stone brick outer wall rampart masonry quiet traditional tower watchtower defense fortification stronghold bulwark bastion fortress solid staircase steps rock bush sunny weathered deserted battlement merlons rook cityscape burgh squared going day nice little town bottom mamede mountain range eastern