black city ruins

ancient architecture asia asian autumn black blue brick building castle china chinese circumvallation city cloud construction desert deserts desolate dirt drought earth ejinaqi environment field gobi heicheng historic history hot inner isolated landscape mongolia monuments mud natural nature old oriental pagoda path pattern people rampart relics religion ruin ruins sand sands shadow silhouette site sky soil stupa summer tourism tourist tower town travel traveller travellers upright void wall western wide wild xia