A youth in make-up waits for the start of the annual Zombie walk in Mexico City, Saturday, October 22, 2016. Hundreds dressed in rags and ghoulish makeup to look bloody and decaying, gathered in the historic center of Mexico's capital. (Photo by Christian Palma/AP Photo)

Medical staff celebrate after all patients were discharged at a temporary hospital set up to treat people with the COVID-19 coronavirus in Wuhan in China's central Hubei province on March 9, 2020. China closed most of its makeshift hospitals for coronavirus patients, some schools reopened and Disney resort staff went back to work on March 9 as normality slowly returns to the country after weeks battling the epidemic. (Photo by AFP Photo/China Stringer Network)

Soccer player David Beckham (C) with Cruz Beckham (L) and Romeo Beckham (R) get slimed onstage during Nickelodeon Kids' Choice Sports Awards 2014 at UCLA's Pauley Pavilion on July 17, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

In this August 3, 2015, photo, residents make their way through floodwaters in Minbu, Magway division, in Myanmar. The Ministry of Social Welfare, Relief and Resettlement said that more than 200,000 people are affected in 11 of the country's 14 states and divisions by flooding. In addition to damage to houses and farmland, infrastructure has been very badly hit, with roads and rail lines cut in many places and telecommunication links broken. (Photo by Hkun Lat/AP Photo)

A bench engraved with the name of the grounded Costa Concordia cruise ship (seen at rear) is seen washed up on the shore of Giglio island, in this January 20, 2012 file photo. The trial of Francesco Schettino, accused of causing the deaths of 32 people in the 2012 Costa Concordia cruise ship disaster, nears its climax with a verdict expected over the coming days. The prosecution has demanded that he be jailed for 26 years but the captain denies all the charges against him. Schettino was the commander of the vessel when it came too close to shore and hit rocks off the Tuscan holiday island of Giglio. (Photo by Paul Hanna/Reuters)

Now celebrating its 40th year, Nikon Small World is widely regarded as the leading forum to recognize proficiency and photographic excellence of photography taken under the microscope. To select the winners, competition judges analyzed entries from all over the world covering subjects ranging from chemical compounds to up-close-and-personal looks at biological specimens. The 2014 winners will be revealed on October 30th. In 2014, the competition received over 1,200 entries from more than 79 countries around the world. (Photo by Dr. Igor Robert Siwanowicz/Nikon Small World 2014)

Lazar and his sister Andjelka sit by a candle in their home in the eastern Serbian town of Majdanpek, December 4, 2014. Electricity workers in Serbia struggled through snow, ice and treacherous terrain on Thursday to restore electricity to an eastern town left shivering without power, heating or running water for a fourth day. (Photo by Marko Djurica/Reuters)

The Potala Palace in Lhasa, Tibet Autonomous Region, China, was the chief residence of the Dalai Lama until the 14th Dalai Lama fled to India during the 1959 Tibetan uprising. It is now a museum and UNESCO World Heritage Site.