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)
Participants wear traditional clogs as shepherds lead their sheep through the center of Madrid, October 28, 2012. (Photo by Andres Kudacki/Associated Press)
iPhone 4 hard case cover with portrait of Steve Jobs are on sale on October 9, 2011 in Shenzhen, Guangdong Province of China. Apple co-founder Jobs died on October 5, 2011 at the age of 56. (Photo by ChinaFotoPress/Getty Images)
LOS ANGELES - OCTOBER 31: Mike Tyson poses at the Halloween Mansion Party hosted by Haylie Duff on October 31, 2005 in Hollywood, Los Angeles, California. (Photo by David Livingston/Getty Images)