尼克松偕夫人蔘觀八達嶺長城
Nixon and his wife visited the Great Wall
里根夫婦遊覽長城
The Reagan couple toured the Great Wall
克林頓在長城照相
Clinton took photos on the Great Wall
小布什偕夫人來到八達嶺長城
George W. Bush and his wife went to Badaling Great Wall
奧巴馬豎拇指讚歎長城雄偉
Obama praises the majestic Great Wall