The Great Wall of China, Mutianyu, Huairou County, China

boundaries winter protection outdoors sunlight sunset dusk sunrise dawn structure building landmark history border illumination china illuminated boundary architecture buildings landmarks landscapes walls tourism scenics historic brick protective structures defensive bricks fortification borders world heritage site local landmark high angle architectural exteriors tourist attractions attractions destinations historical mountains outside nobody attraction stone destination travel mountain wall high angle view color image unesco tourist attraction travel destination travel destinations unesco world heritage site non urban scene national landmark watch tower watch towers place of interest people's republic of china great wall the great wall of china national landmarks no one no people building exteriors local landmarks mutianyu the great wall huairou county places of interest mutianyu section