长城

The Great Wall is one of the most famous wonders in the world. It stretches across northern China like a giant dragon.

Built by the ancient Chinese people, it showcases their incredible wisdom and is a testament to China's long history and rich culture.

The Great Wall starts in the west at Jiayuguan Pass in Gansu Province and ends in the east at Hushan Mountain in Liaoning Province.

It spans over 15 provinces and regions, including Beijing, Tianjin, and Inner Mongolia.

Its total length is about 21, 196 kilometers, making it the longest wall in the world.

The Great Wall was originally built as a defense system to protect China from northern invaders.