jiayuguan city at sunrise

ancient architecture asia asian background beautiful brightness building castle china chinese circumvallation city construction dark darkness dawn dawning daybreak defence defend desert deserts desolate door drought dusk entrance evening eventide famous gate gloaming gloom gobi gold golden great greatwall guard guarding historic history landmark landscape monument mysterious mystic nightfall old orange place rampart relics ruin ruins safeguard safety security shadow shine silhouette site sky sun sundown sunlight sunrise sunset sunshine sunup tourism tourist tower town travel twilight upright wall wonderful