pathway on top of thick stone wall with a small watchtower

europe portugal alentejo marvao vacation travel tourist picturesque gothic baroque ancient old rustic charming architecture stone outer wall parapet masonry quiet sunset fortification finery weathered deserted construction battlement rough cobblestone pathway walkway balustrade rampart bastion burgh cityscape defense shabby causeway watchtower turret defensive bartizan guerite brick sunny romantic rock grout top thick small day amazing medieval fortified village perched granite crag eastern