Tourists visit the Chongqing Garden during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday. (Photos: Xinhua/Ren Chao)

Artists perform during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.

Tourists visit the Chongqing Garden during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.

Artists perform during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.

Artists perform during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.

Tourists visit the Chongqing Garden during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.

Tourists visit the Chongqing Garden during the "Chongqing Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 25, 2019. The "Chongqing Day" event was held at the Beijing International Horticultural Exhibition on Thursday.