A cat sits on the empty Great Wall on February 23, 2021 in Beijing, China. Affected by the new coronavirus (COVID-19), the number of visitors to Mutianyu Great Wall in 2020 dropped by about 60%. (Photo by Lintao Zhang/Getty Images)

An Orangutan named Elze walks in the Biopark of Rio during a media tour in Rio de Janeiro, Brazil, Thursday, March 18, 2021. The park was closed to the public for renovations to convert the city zoo into a center for biodiversity conservation and will reopen to the general public at the end of March. (Photo by Bruna Prado/AP Photo)

Naga Sadhus, or Hindu holy men, participate in the procession for taking a dip in the Ganges river during Shahi Snan at “Kumbh Mela”, or the Pitcher Festival, amidst the spread of the coronavirus disease (COVID-19), in Haridwar, India, April 12, 2021. (Photo by Danish Siddiqui/Reuters)

Aerialists Luka Owen and Daniel Connor perform with a Fork Lift Truck to mark the handover of the former Daimler Car Factory to Imagineer by the Wigley Group on April 14, 2021 in Coventry, England. The building will include a sound recording studio and edit suite, as well as a Sprung Dance Floor and Vertical Dance Wall. As well as providing a home for Imagineer’s innovative education and training programmes aimed at young people and people with disabilities. (Photo by Darren Staples/Getty Images)

A guest arrives before the Blumarine show during Milan Fashion Week Spring 2019 in Milan, Italy, September 21, 2018. (Photo by Stefano Rellandini/Reuters)

A Russian army conscript called up for service in the Kremlin regiment and a woman say farewell at Yekaterinburg-Passazhirsky railway station in Yekaterinburg, Russia on November 15, 2018. (Photo by Donat Sorokin/TASS Russian News Agency)

This aerial picture taken on the night of November 12, 2018 shows traffic on an elevated intersection in downtown Shanghai, China. (Photo by Johannes Eisele/AFP Photo)

University students demonstrate against the crisis in the public education, budget cuts and a tax reform project announced by the government of Ivan Duque in Medellin, Colombia on December 13, 2018. (Photo by Joaquín Sarmiento/AFP Photo)