A Police officer checks a man wearing a carnival costume in Venice, Italy, Sunday, January 31, 2016. Carnival-goers in Venice are being asked by police to momentarily lift their masks as part of new anti-terrorism measures for the annual festivities. Police are also examining backpacks and bags and using metal-detecting wands before revelers are allowed into St. Mark's Square, the heart of the Venetian carnival. (Photo by Luigi Costantini/AP Photo)

A couple passes the sculpture “Transformer” by Chinese artist Bi Heng during snowfall in Kassel, central Germany, Tuesday March 12, 2013. Frankfurt airport closed, a quarter of flights out of Paris were canceled, Belgium suffered record traffic jams and high-speed trains were stuck in stations – all because of a sudden dump of oddly late snowfall on Western Europe. Less prepared for the kind of heavy snow that regularly hits northern and eastern neighbors, France, Britain and Belgium struggled Tuesday to keep moving amid the frosty, blustery conditions. (Photo by Uwe Zucchi/AP Photo/Dpa)

U.S. Park Police work to keep people away from the area surrounding the Washington Monument after a 5.8 magnitude earthquake struck the east coast August 23, 2011 in Washington, DC. Police officers said that unidentified material had fallen off the Washington Monument as a result of the earthquake. All the monuments and buildings along the National Mall have been evacuated and closed. (Photo by Chip Somodevilla/Getty Images)

A Typhoon jet flown by Flt Lt Jim Peterson practising over RAF Coningsby in the East Lindsey district of Lincolnshire, England on September 27, 2019 producing a rainbow effect over the plane. The rainbow is made of crystalized or frozen water vapor that reflect and refract sunlight, causing the rainbow effect. (Photo by Claire Hartley/Bav Media)

A member of Korean Federation for Environmental Movement in a Santa Claus outfit attaches dumped cigarette butts at a cigarette butt Christmas tree in front of Korea Tobacco & Ginseng Corporation office in Seoul, South Korea, Monday, December 23, 2019. The environmental activist group called for a ban on the use of plastic for cigarette filters as part of efforts to protect the environment from toxic plastic pollution. (Photo by Ahn Young-joon/AP Photo)

Male and female bodybuilders prepare backstage to compete during the Asia Pacific Bodybuilding Championships 2019 in Bangkok, Thailand, 17 August 2019. Hundreds of bodybuilders from Asia Pacific countries are set to flex their muscles to compete in the contest. (Photo by Rungroj Yongrit/EPA/EFE)

The model Dovima in a suit and cloche hat at Les Deux Magots cafe in Paris, France in 1955. (Photo by Richard Avedon/The Richard Avedon Foundation/The Guardian)

Cars drive under a rainbow near Bad Langensalza, Germany, Wednesday, November 2, 2016. (Photo by Jens Meyer/AP Photo)