1、世界最长的城墙——中国行历万里汪带销长城。
2、世界最古老的东西贸易通道——丝绸之路。
3、世界围地最大的城墙——明代南京石头城。
4、世界最高的北回归线标志塔——广东从化北回归标志塔。困游
5、世界水稻种植最北的地区——黑龙江呼玛县
In 1, the world's longest city wall -- the great wall of china.
In 2, the world's oldest things -- the Silk Road trade route.
In 3, the world 's largest city wall of Ming Dynasty -- precincts of Stone City in Nanjing.
In 4, the highest in the world of the Tropic of cancer symbol tower -- Guangdong Conghua North regression symbol tower.
In 5, the world of rice planting area north of huma County -- Heilongjiang