Night view of ancient town Tianshui in Gansu

Tourists visit Tianshui ancient town in Tianshui City, northwest China's Gansu Province, June 9, 2022. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)

Photo taken on June 9, 2022 shows the night view of Tianshui ancient town in Tianshui City, northwest China's Gansu Province. The ancient town, a block with historical buildings in Tianshui, has been renovated and received tourists for nearly one year. The restoration is in a bid to preserve history and the city's cultural heritage. (Xinhua/Chen Bin)