Birds fly over the Atomic Bomb Dome in Hiroshima, western Japan July 29, 2015. On August 6, 1945, the U.S. dropped the atomic bomb on Hiroshima, killing about 140,000 by the end of the year in a city of 350,000 residents, in the world's first nuclear attack. Three days later, a second atomic bomb was dropped on Nagasaki. Influenced by the shadows scorched into outdoor surfaces by the heat of the blasts 70 years ago, Reuters photographer Issei Kato pays homage to survivors, residents and historic buildings in both cities in a personal project that captures the shadows of today. (Photo by Issei Kato/Reuters)

Traditional trumpeters perform during the durbar festival on the second day of Eid-al-Fitr celebrations in Nigeria's northern city of Kano, July 7, 2016. The Durbar festival begins with prayers, followed by a parade of the Emir and his entourage on horses, accompanied by music players, and ending at the Emir's palace. The Durbar festival had been in hausaland for more than 500 years. It was introduced by sarki muhammadu rumfa of kano in the late 14th century, as a way of demonstrating military power and skills before going to war. The festival is also an opportunity for local leaders to pay homage to emir throughout the jahi cheering. (Photo by Akintunde Akinleye/Reuters)

Camila Hormazabal, a 24-year-old sеx worker, uses a laptop to connect to the web and keep an online erotic meeting with a virtual customer in Concepcion, Chile on April 7, 2020. Hormazabal reinvented herself offering sexual services online after the nightclub where she had worked was closed due to the outbreak of the coronavirus disease (COVID-19). (Photo by Juan Gonzalez/Reuters)

s*x workers, wearing decorative skull masks, march through the streets in downtown Mexico City, Friday, October 28, 2016. The women march with candles to an altar dedicated to their departed colleagues, many who died violently at the hands of their customers. This annual procession, tied to the Day of the Dead festivities, has taken place for more than 20 years. (Photo by Eduardo Verdugo/AP Photo)

A staff member of a toy store wears a face mask as she invites customers to enter the store, in London, Tuesday, September 22, 2020. British Prime Minister Boris Johnson has slammed the brakes on the country's return to offices, saying people should work from home if possible to help slow the spread of the coronavirus. Johnson on Tuesday announced a package of new restrictions, including a requirement for pubs, restaurants and other hospitality venues in England to close between 10 p.m. and 5 a.m. (Photo by Frank Augstein/AP Photo)

In this image released by World Press Photo, Thursday April 15, 2021, by Ami Vitale for CNN, titled Rescue of Giraffes from Flooding Island, which won the first prize in the Nature Singles category, shows A Rothschild's giraffe (Giraffa camelopardalis rothschildi) is transported to safety in a custom-built barge from a flooded Longicharo Island, Lake Baringo, in western Kenya, on Dec. 3, 2020. (Photo by Ami Vitale for CNN, World Press Photo via AP Photo)

A flight attendant wearing a Brazil soccer team jersey demonstrates the emergency mask on an airplane travelling from Kunming to Hangzhou June 23, 2014. A Chinese airline company renovated the cabin of one of its flights then dressed the flight attendants with soccer jerseys as a way to celebrate the 2014 Brazil World Cup and hoping to attract more customers, local media reported. (Photo by Wong Campion/Reuters)

Customers drink a coffee as several cats roam at Cat Cafe Melbourne on July 25, 2014 in Melbourne, Australia. Cat Cafe Melbourne is Australias first cat cafe. The cafe has several cats from rescue shelters which live at the premises. Patrons can watch and play with the cats while enjoying a coffee. Cat Cafes are becoming known world wide, the first opening in Taiwan in 1998. (Photo by Scott Barbour/Getty Images)