jiayuguan city

ancient architecture asia asian blue brick bricks brown building castle china chinese circumvallation city cloud clouds construction defence defend desert deserts desolate door drought earth east eastern entrance environment famous field gate gobi great greatwall guard guarding historic history landmark landscape monuments mud natural nature old oriental pagoda pattern place rampart relics ruin ruins safeguard safety sand sands scenery scenic security shadow sightseeing silhouette site sites sky tourism tourist tower town travel upright visitor wall western wide wild wood wooden