Chinese boy walking the Great Wall of China at Mutianyu, north of Beijing (formerly Peking)

1 boy 1 child ancient antiquities antiquity backviews barriers castellated walls china chinese east asia effort ethnic diversity exotic locations far east high walls historical sites landmark long walk old stone one boy protection steep climb steps stone walls strength the great wall tourism site tourist destinations tourist site uphill struggle upward angle upward view walk walking holidays wonders of the world world heritage site young boy barrier boundaries boundary climbing up daytime defence exercise full length full lengths height historic site horizontal landscape limestone one child outdoors outside place places of interest slope stock image stock photo stock photograph tourist attraction tourist sight tourists travel destination travel photo travel photograph travel photography travel stock travels vacations walking walkways world culture travel travel destinations chinese culture international landmark national landmark landmarks tourism destination sightseeing travelers visitors visiting travellers traveler traveller visitor visit sightseers world cultures culture national culture color image color colour scenic scenics landscapes