In this photo taken on Saturday, April 22, 2017, a drawing “King for a day” is made on the back of a muddy truck by artist Nikita Golubev in Moscow, Russia. The grimy trucks traversing the polluted and dusty streets of Moscow have inspired Golubev to use white vans and trucks as his canvas to create this ephemeral street art and signs his drawings Pro Boy Nick. (Photo by Pavel Golovkin/AP Photo)

People dancing to buskers performances in Sai Yeung Choi Street South in Mongkok district, Hong Kong, China, 28 July 2018. After 18 years of unregulated street performances, the street performers were forced to give up the space to vehicular traffic again. (Photo by Jerome Favre/EPA/EFE)

Picture shows a mural painting in Ferrol, on September 2, 2018, during the annual street art festival “Meninas de Canido” set up in 2008 to breathe new life in a dying neighborhood. Angry at the announced death of his neighborhood, Canido, in Ferrol, Eduardo Hermida painted his version of Velazquez's “Meninas” on a wall. An act of protest that gave birth to a festival and gave new colors to this city of Galicia. (Photo by Miguel Riopa/AFP Photo)

A work by Chinese artist ROBBBB is seen on a wall in the ruins of a building in Beijing September 27, 2015. The 25-year-old artist in Beijing prefers to display his work on the walls of abandoned buildings, rather than a gallery. His artwork is mostly derived from photos of people he sees in the Chinese capital, anyone ranging from elderly people to construction workers. (Photo by Jason Lee/Reuters)

An elephant eats a snack after performing at Ringling Bros and Barnum & Bailey Circus' “Circus Extreme” show at the Mohegan Sun Arena at Casey Plaza in Wilkes-Barre, Pennsylvania, U.S., April 29, 2016. Elephants take a final bow at Ringling Bros and Barnum & Bailey Circus on Sunday, ending a 145-year spectacle that delighted fans but enraged animal activists, who say the highly publicized retirement is not enough. (Photo by Andrew Kelly/Reuters)

Buddhist monks walk past a statue of comic character the Hulk at Tamru temple in Samut Prakan province, Thailand, March 3, 2016. It’s a sign of changing times for Buddhism in Thailand when one sees temples, including Wat Tam Ru, using U.S. comic superheroes to attract children and teenagers into the religion. (Photo by Chaiwat Subprasom/Reuters)

Migrants play soccer at makeshift camp in Via Cupa (Gloomy Street) in downtown Rome, Italy, August 2, 2016. Italy is taking in thousands of boat migrants every week for a third year in a row, and friction is common between them and those who live along the path many take on their journey towards northern Europe. (Photo by Max Rossi/Reuters)

People walk along a street with long-tailed macaques in Lopburi, north of Bangkok November 29, 2015. (Photo by Jorge Silva/Reuters)