Western tourists walk the ancient Great Wall of China at Mutianyu, north of Beijing, China

2 people ancient antiquities antiquity barriers castellated walls china chinese coming down descending descent downhill east asia eastern culture exotic locations far east force fortified high walls historical sites landmark long walk old stone peking protection steep slope steps stone walls strength the great wall tourism site tourist destinations tourist site walking holidays western tourists wonders of the world world heritage site adults barrier boundaries boundary couple couples daytime defence fortification full length full lengths historic site horizontal landscape limestone outdoors outside place places of interest real people sightseeing sightseers stock image stock photo stock photograph tourist attraction tourist sight travel destination travel destinations travel photo travel photograph travel photography travel stock travels two people vacations world culture travel chinese culture chinese ethnicity chinese appearance asian ethnicity asians international landmark national landmark landmarks tourism destination travelers visitors visiting travellers traveler traveller visitor visit world cultures culture national culture color image color colour scenic scenics landscapes