In Omdurman, the largest city in Sudan, the Qadiriyya Sufi order meets every Friday outside Sheikh Hamed Al Nil mosque, which houses the tomb of their 19th century Sufi leader. (Photo by Ala Kheir, John Burns and Ibrahim Algrefwi/Brownbook)

Refugees and migrants try to find a place on an already full train headed for Serbia, near the city of Gevgelija, The Former Yugoslav Republic of Macedonia, on February 24, 2016. Refugees and migrants from Iraq and Syria continue to pass through Macedonia on their way to the European Union. (Photo by Georgi Licovski/EPA)

Voters line up to cast their ballots at a polling station in the city of Qom, Iran. Elections for Iran's parliament (Majlis) and Assembly of Experts kicked off on Friday, February 26, 2016. (Photo by Ahmad Halabisaz/Xinhua via ZUMA Wire)

Demonstrators wear skull masks during an anti government protest, as Chile's President Michelle Bachelet delivers a speech inside the National Congress, in Valparaiso city, Chile May 21, 2016. (Photo by Ivan Alvarado/Reuters)

Palestinian boy Mohamad al-Sheikh, 12, who is nicknamed “Spiderman” and hopes to break the Guinness world records with his bizarre feats of contortion, demonstrates acrobatics skills on a beach in Gaza City June 2, 2016. (Photo by Mohammed Salem/Reuters)

New York City FC midfielder Valentin Castellanos (11) falls after battling Columbus Crew defender Aboubacar Keita (30) for a high ball during the second half at Red Bull Arena in New York, August 24, 2020. (Photo by Vincent Carchietta/USA TODAY Sports)

People out in Manchester town centre, United Kingdom on September 20, 2020. The latest Public Health England data shows that 672 new cases of Covid-19 were recorded in the city in the seven days to September 17. (Photo by Danny Lawson/PA Images via Getty Images)

A girl catches a fish in the marshes of the southern district of Chibayish in Dhi Qar province, about 120 kilometres northwest of the southern city of Basra, on September 23, 2020. Iraq's southern marshes are blossoming thanks to a wave of ecotourists picnicking and paddling down their replenished river bends. (Photo by Hussein Faleh/AFP Photo)