Two young women, having enjoyed a drink at a party, dance together in Tehran, Iran. Although unrelated men and women are forbidden to socialise together many people ignore these strictures in the privacy of their own homes. (Photo by Hossein Fatemi/Reuters/Panos Pictures/Courtesy of World Press Photo Foundation)

As the world marks International Women's Day on Wednesday, whose theme this year focuses on “women in the changing world of work”, the Israeli military says it is ahead of the curve in providing combat roles for female soldiers. Here: A female Israeli soldier from the Haraam artillery battalion fixes her hair in the women's living quarters at a military base in the Israeli-occupied Golan Heights March 1, 2017. (Photo by Nir Elias/Reuters)

Vietnam’s Son Doong cave, the largest in the world, could hold a 40-story skyscraper inside. The pristine ecosystem has its own river and jungle. Despite its size, Son Doong wasn’t discovered until 1991. It was lost again for nearly two decades and was fully explored for the first time in 2009. (Photo by Jason Speth/HuffPost)

Fans dressed in Spider-Man outfits gather at a promotional event for the forthcoming “Spider-Man: Homecoming” movie at the Art Science Museum in Singapore on June 7, 2017. The movie will be shown in cinemas around the world from July 5 onwards. (Photo by Toh Ting Wei/AFP Photo)

An Argentina soccer fan watches the team lose to Saudi Arabia at a World Cup Group C soccer match, played on a large screen in the Palermo neighborhood of Buenos, Aires, Argentina, early Tuesday, November 22, 2022. (Photo by Gustavo Garello/AP Photo)

Robert Lewandowski of Poland in action against Cristian Romero (R) of Argentina during the FIFA World Cup Qatar 2022 Group C match between Poland and Argentina at Stadium 974 on November 30, 2022 in Doha, Qatar. (Photo by Amanda Perobelli/Reuters)

Japanese football fan during the FIFA World Cup Qatar 2022 Group E match between Japan and Costa Rica at Ahmad Bin Ali Stadium on November 27, 2022 in Doha, Qatar. (Photo by Dylan Martinez/Reuters)

Fans of Germany enjoy the pre match atmosphere prior to the FIFA World Cup Qatar 2022 Group E match between Costa Rica and Germany at Al Bayt Stadium on December 01, 2022 in Al Khor, Qatar. (Photo by Stuart Franklin/Getty Images)