Racegoers during Ladies Day at the Grand National Festival at Aintree Racecourse on April 13, 2018 in Liverpool, England. (Photo by Mercury Press)

A Grevy’s zebra gets itself noticed at ZSL Whipsnade Zoo in Whipsnade, England on April 20, 2018. (Photo by Tony Margiocchi/Barcroft Media)

Ammunition airlift into besieged Khe Sanh, Operation Pegasus, April 1968. (Photo by Larry Burrows/AP Photo)

A soldier walks on the bank of the river in central Pyongyang, North Korea on April 16, 2017. (Photo by Damir Sagolj/Reuters)

A student takes part in Tamil New Year and Vishu celebrations in Chennai on April 13, 2022. (Photo by Arun Sankar/AFP Photo)

An attendee dances at the start of the “Big Goth Dance Party” during the Porcupine Freedom Festival, or PorcFest, the Free State Project's annual summer gathering in Lancaster, NH on Wednesday, June 25, 2014. (Photo by Matthew Cavanaugh/The Washington Post)

The underwater fashion photos featured in the May 2014 Sun Magazine were taken by Sun photographer Lloyd Fox in a pool at the home of Mary Kay and Chuck Nabit. Styling was provided by Sun reporter John-John Williams IV, and the art director for the shoot was Sun design editor Leeann Adams. Photo: The Sun magazine's under water fashion shoot with resort style clothes, March 25, 2014. (Photo by Lloyd Fox/Sun Photographer)

This picture taken on July 25, 2014 shows people cooling off in a waterpark in Suining, southwest China's Sichuan province. Meteorological departments issued an orange alert for high temperature as a heat wave embraces Sichuan province, with temperature of most area topped 37, local media reported. (Photo by AFP Photo)