![](http://www.ecns.cn/hd/2023/05/16/f92063bc38a342edae6b1115571688da.jpg)
Photo taken on May 15, 2023 shows the remains of granaries dating back 4,000 years at the Shizhuang Site in Zhoukou, central China's Henan Province. (Photo: China News Service/Wang Yu)
A total of 28 granaries found at the Shizhuang Site are believed to be among China's earliest centralized grain storage facilities.
![](http://www.ecns.cn/hd/2023/05/16/0181aa20a43542349b7e8ad9110e7ecb.jpg)
Photo taken on May 15, 2023 shows the remains of granaries dating back 4,000 years at the Shizhuang Site in Zhoukou, central China's Henan Province. (Photo: China News Service/Wang Yu)
![](http://www.ecns.cn/hd/2023/05/16/8a6510f9410645feaa2f7833d80023a5.jpg)
Photo taken on May 15, 2023 shows the remains of the Shizhuang Site in Zhoukou, central China's Henan Province. (Photo: China News Service/Wang Yu)
![](http://www.ecns.cn/hd/2023/05/16/97e60f39731f4bad9acf5c505d6abbdd.jpg)
Photo taken on May 15, 2023 shows the remains of the Shizhuang Site in Zhoukou, central China's Henan Province. (Photo: China News Service/Wang Yu)