Fallen leaves cover the undergrowth as a commuter on a bicycle makes her way through the Tiergarten park in central Berlin on December 7, 2020. (Photo by Odd Andersen/AFP Photo)

A potential Banksy has appeared on Vale Street in Bristol, United Kingdom on December 10, 2020. The elusive artist is from the city and is known for creating new works without anyone catching him in the act. An image of an old woman sneezing without covering her mouth has been spotted on a wall in the Totterdown area – a possible nod to the current health crisis. Crowds are already gathering at the bottom of Vale Street – one of Britain's steepest roads – to take pictures and discuss. (Photo by South West News Service/Action Press)

A ballet dancer poses in a giant plastic bubble as she entertains Christmas shoppers in Melbourne on December 13, 2020. (Photo by William West/AFP Photo)

Masks based on real people's faces are diplayed at the Shuhei Okawara's mask shop in Tokyo, Japan on December 16, 2020. (Photo by Issei Kato/Reuters)

Santa Claus wears a mask as he pushes a sleigh full of curbside grocery orders to an Aldi customer at a parking lot in Palatine, Ill., Saturday, December 19, 2020. For this weekend only, Santa Claus is delivering groceries to Aldi customers in Palatine and several other towns in the Chicago area. (Photo by Nam Y. Huh/AP Photo)

Model Bella Hadid presents a creation by designer Jean Paul Gaultier as part of his Haute Couture Spring/Summer 2020 collection show in Paris, France, January 22, 2020. Picture taken January 22, 2020. (Photo by Charles Platiau/Reuters)

Swedish climate change activist Greta Thunberg, Isabelle Axelsson and German Luisa Neubauer take part in a climate strike protest during the 50th World Economic Forum (WEF) annual meeting in Davos, Switzerland on January 24, 2020. (Photo by Denis Balibouse/Reuters)

Ricky Rebel attends the 62nd Annual GRAMMY Awards at Staples Center on January 26, 2020 in Los Angeles, California. (Photo by Mike Blake/Reuters)