People stand in silence at a ceremony in the Memorial Hall of the Victims of the Nanjing Massacre on Thursday to mourn the 300,000 lives lost in the tragedy 81 years ago. (Photos: VCG)

Protesters hold a banner reading "The People speak out" on the "Promenade des Anglais" during a protest by Yellow vests (Gilets jaunes) against rising oil prices and living costs, in Nice, southeastern France, on December 11, 2018.

Snow carvers make sculpture for the forthcoming 31st Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, capital of northeast China's Heilongjiang Province, Dec. 14, 2018. (Photo: Xinhua)

Iraqi Yazidi-Kurdish human rights activist and co-laureate of the 2018 Nobel Peace Prize Nadia Murad gives a speech after accepting her prize during the Nobel Peace Prize ceremony 2018 on December 10,at the City Hall in Oslo, Norway. (Photos: VCG)

Saint Basil's Cathedral is decked up for Christmas and on the Red Square in Moscow on December 11, 2018.

Men next to a sign reading "Mural of brotherhood", watch from Playas de Tijuana, Baja California state, Mexico through the Mexico-US border fence as US border patrol agents surround pro-migrant activists demonstrating against US migration policies at Imperial Beach in San Diego county, US, on December 10.

Aerial photo shows a rainbow over the Hukou Waterfall on the Yellow River at the border between north China's Shanxi Province and northwest China's Shaanxi Province on Dec. 11, 2018. (Photo: Xinhua)

The "Fearless Girl" statue in New York City, US that once stood against the Charging Bull statue of Wall Street, is permanently relocated to her new home on December 10 facing the New York Stock Exchange (NYSE). (Photos: VCG)

Seihan Mori, master of the ancient Kiyomizu Temple, uses a calligraphy brush to write the Chinese character, known as kanji, of "disaster" at the temple in Kyoto on December 12, 2018. Japan selected the Chinese character for "disaster" as its traditional "defining symbol of 2018" after the country was hit by a series of natural disasters.

A 102-year-old Australian granny has become the world's oldest tandem skydiver, according to organizers, as she leaped off a plane from over 4,200 meters above sea level. Irene O'Shea hoped to raise funds and awareness for the Motor Neurone Disease Association of South Australia through the attempt, after she lost her daughter to the ailment a few years ago. (Compiled by Yan Yiqiao)