![](http://www.ecns.cn/hd/2021/07/09/4fc9d2a475a2427eb861fe607d19a521.jpg)
Photo shows the fresco in a tomb in Jinan, Shandong Province on July 7, 2021. A 35-tomb cluster was discovered in an archaeological activity that launched in April this year in Jinan city. (Photo: China News Service/ Zhao Xiao)
Twelve of the tombs belonging to Guo's family date back to the Yuan Dynasty (1271-1368), with 11 showing well-conserved frescoes and brick carvings. About 60 sets of potteries, porcelains, bronze mirrors, and ancient Chinese coins were also unearthed.
![](http://www.ecns.cn/hd/2021/07/09/1569452225f14c8a9cde2f561d52154f.jpg)
A guide introduces the fresco and characters on the wall of the tomb in Jinan, Shandong Province on July 7, 2021. (Photo: China News Service/ Zhao Xiao)
![](http://www.ecns.cn/hd/2021/07/09/45320ac359ff4847a29ec786080bec80.jpg)
Photo shows the archaeological excavation site of the tombs in Jinan, Shandong Province. (Photo: China News Service/ Zhao Xiao)
![](http://www.ecns.cn/hd/2021/07/09/0a90ccb161fa404a95317bea3d806a07.jpg)
A guide introduces the fresco and characters on the wall of the tomb in Jinan, Shandong Province on July 7, 2021. (Photo: China News Service/ Zhao Xiao)
![](http://www.ecns.cn/hd/2021/07/09/367f54056cd9462c9fe057b533728d7a.jpg)
Photo shows the archaeological excavation site of the tombs in Jinan, Shandong Province. (Photo: China News Service/ Zhao Xiao)