View of pavement in SW China's Chongqing

Aerial photo shows tourists walking on a pavement at the former site of Chongqing Iron & Steel Factory in Dadukou District of southwest China's Chongqing Municipality, Feb. 15, 2022. The pavement is one of the 60 characteristic pavements planned by local authorities in the mountainous city of Chongqing.

Tourists pose for a group photo on a pavement at the former site of Chongqing Iron & Steel Factory in Dadukou District of southwest China's Chongqing Municipality, Feb. 15, 2022.

A child walks on a pavement at the former site of Chongqing Iron & Steel Factory in Dadukou District of southwest China's Chongqing Municipality, Feb. 15, 2022.

COVID-19 testing lab put into use in Hong Kong 'The Little Prince' manuscript goes on display in Paris for first time