In this April 20, 2018, file aerial photo released by China's Xinhua News Agency, advection fog drifts across skyscrapers on the waterfront in Qingdao in eastern China's Shandong Province. Chinese leaders have long been sensitive about their communist country’s international image. Now, they are battling back, investing in diplomacy and a courtship of hearts and minds, just as the United States digs in on the Trump administration’s “America First” mindset. (Photo by Lu Hui/Xinhua via AP Photo/File)

A participant wearing a costume and make-up attends a Halloween parade at Walibi park in Wavre, Belgium, October 25, 2019. (Photo by Yves Herman/Reuters)

A ballet student poses for a friend to take photos, at the national ballet school in Havana, Cuba, Thursday, December 12, 2019. The Soviet-style system that recruits children into a system of increasingly selective state dance schools has produced hundreds of elite dancers including Lorna Feijoo, Rolando Sarabia, Taras Domitro, Anette Delgado and Carlos Acosta. (Photo by Ramon Espinosa/AP Photo)

In this Sunday, September 23, 2012 file photo, masked and armed Somali pirate Hassan stands near a Taiwanese fishing vessel washed ashore after the pirates were paid a ransom and the crew were released in the once-bustling pirate den of Hobyo, Somalia. Pirates have hijacked an oil tanker off the coast of Somalia, Somali officials and piracy experts said Tuesday, March 14, 2017, in the first hijacking of a large commercial vessel there since 2012. (Photo by Farah Abdi Warsameh/AP Photo)

An Indian boy sells flowers to Hindu devotees of Lord Shiva as they perform rituals after collecting water from the river Ganges during the holy month of Shravan, In Allahabad on July 22, 2019. Shravan is considered the holiest month in the Hindu calendar with many religious festivals and ceremonies. (Photo by Sanjay Kanojia/AFP Photo)

A man takes a picture of the first A380 for All Nippon Airways (ANA) during its delivery ceremony at the Airbus delivery center in Colomiers near Toulouse, France, March 20, 2019. (Photo by Regis Duvignau/Reuters)

Model Winnie Harlow wears a creation as part of the John Richmond men's Fall-Winter 2019-20 collection, that was presented in Milan, Italy, Sunday, January 13, 2019. (Photo by Antonio Calanni/AP Photo)

An orphaned giraffe nuzzling a wildlife keeper at Sarara camp in Kenya, one of 70 pictures being sold by Prints for Nature (printsfornature.com) to raise money for work by the Conservation International charity. This giraffe was rehabilitated and returned to the wild, as a number of others have done before him. Right now, giraffe are undergoing what has been referred to as a silent extinction. Current estimates are that giraffe populations across Africa have dropped 40 percent in three decades, plummeting from approximately 155,000 in the late 1980s to under 100,000 today. (Photo by Ami Vitale/National Geographic)