Treason's Gate and ramparts, Trancoso Castle, Serra da Estrela, Centro, Portugal, Europe

horizontal color image travel destinations travel outdoors day copy space cloud building architecture no people portugal europe serra da estrela centro castle fortress built structure tower stone wall weathered tree moss plant overgrown growth treason's gate rampart trancoso castle past history old ruin trees travel destination tourist destination tourist destinations outdoor outside castles fort forts fortified fortification historic historical daytime