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Keywords:Ancient, Arch, Arched, Architectural, Architecture, Asia, Asian, Attraction, China, Chinese, Cultural, Culture, Division, Exterior, Famous, Far East, Fortification, Great Wall, Great Wall Of China, Guard House, Historic, Historical, Huairou County, Isolation, Landmark, Looking Out, Mika Stock, Mutianyu, Old, Outdoor, Outside, Separate, Separation, Sentry, Stronghold, Sundown, Sunrise, Sunset, Sunup, Tourist, Travel, Travel Destination, Turret, Unesco World Heritage, Wall, Watch Tower, Watchtower, Window
