Open day held at archaeological site of Beijing's Old Summer Palace(1/6)

A staff member introduces the archaeological tools during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)

As part of the 13th Beijing Science Carnival, an open day was launched at the Danbo Ningjing archaeological site on Sunday.

Artifacts are documented after they are unearthed during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)

A staff member introduces a site plan during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)

A staff member introduces an excavation site during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)

A staff member introduces an excavation site during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)

A staff member introduces an excavation site during an open day event at the archaeological site of Beijing's Old Summer Palace, or Yuanmingyuan, Sept. 24, 2023. (Photo: China News Service/Tian Yuhao)