A workman smooths out the gravel near the base of British artist Alex Chinneck' latest sculpture “A bullet from a shooting star” on the Greenwich Peninsula in London on September 17, 2015. The 35-metre tall, upside-down electricity pylon overlooks the Canary Wharf financial district. (Photo by Leon Neal/AFP Photo)

A visitor kneels down nex to an iCub robot made by the Italian Institute of Technology at the scientists congress IROS 2015 in Hamburg, Germany October 2, 2015. The robot congress is organized by TAMS group (Technical Aspects of Multimodal Systems) of Hamburg's university. (Photo by Fabian Bimmer/Reuters)

A handout picture provided by Global newsroom of Czech Martin Sonka (C) leading Nigel Lamb (top) of Great Britain and Yoshihide Muroya of Japan (down) along the Mount Fuji prior the third stage of the Red Bull Air Race World Championship in Chiba, Japan on June 1, 2016. (Photo by Predrag Vockovic/EPA/Global Newsroom)

Anthony Joshua, right, knocks down Andy Ruiz during the third round of a heavyweight championship boxing match Saturday, June 1, 2019, in New York. Ruiz won in the seventh round. (Photo by Frank Franklin II/AP Photo)

Actor Mike Lane, standing six feet 10 inches in his stocking feet, makes a perfect monster as he carries actress Nancy Knox down the stairs into Frankenstein's dungeon, February 28, 1958. They have featured parts in the upcoming Boris Karloff movie “Frankenstein 1970”. (Photo by David F. Smith/AP Photo)

Three pals pose for a picture on a night out in Liverpool city centre, United Kingdom on December 24, 2020. Festive boozers braved the cold in Liverpool and York – as millions down South rang in Christmas Day indoors due to Covid restrictions. (Photo by David Nelson/South West News Service)

Children, some in tears, are escorted down a road in Barcelona, Spain, Thursday, August 17, 2017. Police in Barcelona say a white van has mounted a sidewalk, struck several people in the city's Las Ramblas district. (Photo by Manu Fernandez/AP Photo)

New Orleans police officers try to keep their heads down as they move in on a Black Panther headquarters during an exchange of gunfire in New Orleans on September 15, 1970. The shootout occurred as police moved in to make arrests on Tuesday morning following a series of incidents. (Photo by Jack Thornell/AP Photo)