The Forth Bridge is engulfed by mist on one of the coldest days of the year, on December 12, 2022, in Edinburgh, Scotland. (Photo by Ken Jack/Getty Images)
Kazakh troops march during a parade of the armed forces to mark the Defender of the Fatherland Day in Astana, May 7, 2014. (Photo by Mukhtar Kholdorbekov/Reuters)
Participants wearing masks during a hazy day at the Beijing International Marathon in front of Tiananmen Square, in Beijing, October 19, 2014. (Photo by Reuters/Stringer)