Visitors look on tree with light decorations during the "Christmas Garden Berlin" light show at Berlin-Dahlem Botanical Garden in Berlin, capital of Gremany, on Nov. 15, 2018. The "Christmas Garden Berlin" kicked off on Thursday at Berlin-Dahlem Botanical Garden in southwestern Berlin and will last until Jan. 6, 2019. (Photo: Xinhua)

A hotshot firefighter watches as the Camp Fire burns off of Pentz Road in Paradise, California. At least 63 are now dead from a Northern California wildfire, and officials say they have a missing persons list with 631 names on it in an ever-evolving accounting of the missing after the nation’s deadliest wildfire in a century. (Photos: VCG)

This aerial picture taken on the night of November 12, 2018 shows traffic on an elevated intersection in downtown Shanghai.

Onlookers gather around police vehicle burnt by Bangladesh Nationalist Party (BNP) activists after clashes broke out with police during a march that blocked a road near BNP's NayaPaltan Central office in Dhaka on November 14, 2018.

Traditional dancers from the Southern Highlands of Papua New Guinea wait for Chinese President Xi Jinping to arrive ahead of the Asia-Pacific Economic Cooperation (APEC) Summit, in Port Moresby, Papua New Guinea, November 15, 2018.

This picture taken on November 13, 2018 shows the InterContinental Shanghai Wonderland, built inside a formerly abandoned quarry, about 32 km (20 miles) southwest of Shanghai.

Anti-Brexit campaigners unfurl a banner on Westminster bridge on November 15, 2018 in front of the Houses of Parliament in London. British Prime Minister Theresa May will give a press conference this afternoon amid intense criticism from lawmakers over her Brexit deal.

A person walks over 100,000 postcards with messages against climate change, sent by young people from all over the world and stuck together to break the Guinness World Record of the biggest postcard on the Jungfraufirn, the upper part of Europe's longest glacier, Switzerland, November 16, 2018.

Grey cranes are seen at Duchang wetland of Poyang Lake, east China's Jiangxi Province, November 14, 2018. The Poyang Lake, China's largest freshwater lake, saw a flock of migratory birds overwintering in it. (Photo: Xinhua) (Compiled by Yan Yiqiao)