1 The highest mountain in the world: Himalayas

2 The highest mountain in the world: Mount Everest

3 The highest plateau in the world: Qinghai-Tibet Plateau

4 The highest basin in the world: Qaidam Basin

5 The longest artificial canal in the world: Beijing-Hangzhou Grand Canal

6 The highest lake in the world: Kashun Lake

7 The region with the highest camphor production in the world. Big rivers: Yellow River

9 The world's largest loess distribution area: Loess Plateau

11 The world's largest plateau lake group distribution area: Lake area of Qinghai-Tibet Plateau

11 The world's highest saltwater lake: Namtso Lake in Tibet

12 The world's highest river: Yarlung Zangbo River

13 The world's most sandy river: Yellow River

14 The world's largest. The most famous tidal bore: Zhejiang Qiantang River Tide

16 The world's oldest east-west trade passage: Silk Road

17 The world's longest wall: The Great Wall of Wan Li, China

18 The world's largest wall: Nanjing Stone City in the Ming Dynasty

19 The world's highest tropic of cancer sign tower: Guangdong Conghua Tropic of Cancer sign tower

21 The world's largest meteorite shower and meteorite landing site: