Racegoers have their temperatures checked as they make their way into the course as a pilot scheme for the return of crowds to sporting events is expected to bring in 2500 spectators during day one of the William Hill St Leger Festival at Doncaster Racecourse, England on September 9, 2020. (Photo by BackGrid/The Sun)

A police officer stands at a police cordon near the scene of a terror attack in London, U.K., on Sunday, June 4, 2017. A van swerved into Saturday-night crowds on London Bridge, before three men got out and went on a stabbing rampage through nearby bars. (Photo by Luke MacGregor/Bloomberg)

Festivalgoers on June 29, 2025 enjoy the final day of Glastonbury Festival, where Rod Stewart wowed the Pyramid Stage crowd in the legends slot, with Olivia Rodrigo down to headline the Pyramid Stage. (Photo by South West News Service)

Actors perform “The Passion of Jesus” to crowds in Trafalgar Square on April 22, 2011 in London, England. The actors come from the Wintershall Estate in Surrey where they also perform a Nativity play in and around the farm buildings at Christmas. (Photo by Peter Macdiarmid/Getty Images)

Crowds Gather For New Year's Ball Drop In Times Square on December 31, 2011 in New York City. (Photo by Michael Loccisano/Getty Images)

Children react as a carnivorous theropod known as the Australovenator dinosaur walks through crowds along the Southbank, in London, Monday, February 18, 2013. The dinosaur is one of many that can be visited at the Erth's Dinosaur Petting Zoo, visiting from Australia, the creatures can be touched and fed at the Southbank Centre. (Photo by Kirsty Wigglesworth/AP Photo)

A traditional game that earned hollers from the crowd saw a male rider gallop after a young woman, stretching for a kiss. Only a handful of the men managed the risky peck before the young women turned the tables and thundered after the men with whips in hand. (Photo by Amos Chapple/Radio Free Europe/Radio Liberty)

John McEnroe kicks back a television camera that he felt was crowding him on the court during the finals of the U.S. Pro Indoor Tennis Championships in Philadelphia January 27, 1985. McEnroe defeated Czech Miroslav Mecir to win the tournament. (Photo by Amy Sancetta/AP Photo)