Young man making the O.K. sign. (Photo by George Marks/Retrofile/Getty Images). Circa 1950s

Hospitality staff members laugh as they stand on Tiananmen Square before the closing ceremony of China's 19th Party Congress at the Great Hall of the People in Beijing, Tuesday, October 24, 2017. The ruling Communist Party on Tuesday formally lifted Xi Jinping's status to China's most powerful ruler in decades, setting the stage for the authoritarian leader to tighten his grip over the country while pursuing an increasingly muscular foreign policy and military expansion. (Photo by Mark Schiefelbein/AP Photo)

Looking for a reason to visit the Philippines? This mermaid school should do the trick. No, seriously, there’s an actual school that will teach you how to be a mermaid. It’s called the Philippines Mermaid Swimming Academy. (Photo by Philippine Mermaid Swimming Academy/Exclusivepix Media)

A father crosses a road with his twin daughters in Shanghai, China September 28, 2018. (Photo by Aly Song/Reuters)

Indonesia's Mount Sinabung erupts, sending a column of volcanic materials as high as 16,000 feet into the sky on August 10, 2020. The volcano, one of two currently erupting in Indonesia, was dormant for four centuries before exploding in 2010, killing two people. Another eruption in 2014 killed 16 people, while seven died in a 2016 eruption. (Photo by Sutanta Aditya/Abaca/Sipa USA via AP Images)

A boy holds a green sea turtle hatchling before releasing it at Pekan Bada beach on the outskirts of Banda Aceh on March 14, 2023. (Photo by Chaideer Mahyuddin/AFP Photo)

Spectators shoot video with his their cellphones as Aerosparx Grob109b motor gliders launch fireworks while performing aerobatics at the end of Oeiras Valley Air Show, an aerobatics festival integrated in the Portugal Air Summit'22, over Santo Amaro Beach on October 16, 2022 in Oeiras, Portugal. The festival included various aerobatics performances with airplanes from the Air Race Championship, a Supermarine Spitfire, and air shows by former world champions Ramón Alonso, Castor Fantoba, Jorge Macias, Luís Garção, Quijote, Jacobstars and The Raven Team. It also had an overflight of the Portuguese Air Force F16s and, at the end of the afternoon, Aerosparx team illuminating Santo Amaro water mirror with fireworks launched from the airplanes' wings. (Photo by Horacio Villalobos#Corbis/Corbis via Getty Images)

Photographers wear clothing with cooling fans and staff members wear cloths that protects them from the sun as they prepare for fashion photo session on a street, amid a heatwave warning in Shanghai, China on July 25, 2022. (Photo by Aly Song/Reuters)