Great Wall长城
Great Wall长城
A very long chain of walls and watchtowers that winds over mountains across northern China.
一长串城墙和烽火台，翻山越岭，蜿蜒穿过中国北方。
- Built建成
- 220 BCE公元前 220 年
- Length长度
- 21,196 km21,196 千米
Fun fact趣味知识If you walked its full length at a steady pace it would take you well over a year.如果你按正常速度把它从头走到尾，要花一年多的时间。