The Halloween-themed Mask & Candy Festival 2020 opened at Happy Valley in Beijing, Oct. 10, 2020. [Photo/China.org.cn]

The Halloween-themed Happy Valley signon display at the entrance of Happy Valley in Beijing, Oct. 10, 2020. [Photo/China.org.cn]

A monster gorilla greets tourists during a Halloween-themed parade at Happy Valley in Beijing, Oct. 10, 2020. [Photo/China.org.cn]

Visitors walk through the passage to enter Happy Valley, which is decorated with lit-up Mask & Candy Festival characters and Halloween pumpkins, in Beijing, Oct. 10, 2020. [Photo/China.org.cn]