The Wadi al-Salam cemetery, Arabic for “Peace Valley”, is seen in Najaf, south of Baghdad, Iraq August 3, 2016. The world's largest cemetery, in Iraq's Shi'ite holy city of Najaf, is expanding at double its usual rate as Shi'ite militias bury their dead from the war against Islamic State. The Wadi al-Salam cemetery, Arabic for “Peace Valley” has a special place in the hearts of Shi'ite Muslims as it surrounds the Mausoleum of their first imam, Ali Bin Abi Talib, a cousin and son-in-law of Prophet Mohammad. (Photo by Alaa Al-Marjani/Reuters)

Astronaut Edward H. White II, pilot for the Gemini-Titan 4 (GT-4) spaceflight, floats in the zero-gravity of space during the third revolution of the GT-4 spacecraft on June 3, 1965. White wears a specially designed spacesuit. His face is shaded by a gold-plated visor to protect him from unfiltered rays of the sun. In his right hand he carries a Hand-Held Self-Maneuvering Unit (HHSMU) that gives him control over his movements in space. White also wears an emergency oxygen chest pack; and he carries a camera mounted on the HHSMU for taking pictures of the sky, Earth and the GT-4 spacecraft. He is secured to the spacecraft by a 25-feet umbilical line and a 23-feet tether line. Both lines are wrapped together in gold tape to form one cord. Astronaut James A. McDivitt, command pilot, remained inside the spacecraft during the extravehicular activity (EVA). Astronaut White died in the Apollo/Saturn 204 fire at Cape Kennedy on January 27, 1967. (Photo by NASA)

A student falls asleep as she holds a book containing a portrait of China's late chairman Mao Zedong during a lesson at the Democracy Elementary and Middle School in Sitong town, Henan province December 3, 2013. In a remote part of central China, the day starts at the Democracy Elementary and Middle School with a pre-dawn jog, some revolutionary songs and then an activity long since forgotten at other schools: reciting quotations from Mao Zedong's famed “Little Red Book”. While the ruling Communist Party that Mao led continues to hold him in esteem as the leader of the Communist Revolution, his radical policies and teachings have been largely shelved since his death in 1976 in favour of a pro-market approach that has turned China from a backwater into the world's second biggest economy. The 120th anniversary of Mao's birth is on December 26, 2013. (Photo by Carlos Barria/Reuters)

“This city in Bolivia's highlands has hired Aymara women dressed in traditional multilayered Andean skirts and brightly embroidered vests to work as traffic cops and bring order to its road chaos. About 20 of the “traffic cholitas” have been trained to direct cars and buses in El Alto, a teeming, impoverished sister city of La Paz in Bolivia's Andes mountains”. – El Alto via Associated Press. Photo: In this December 3, 2013 photo, an Aymara woman cops directs traffic on the streets of El Alto, Bolivia. The women wear the bright petticoats and shawls of indigenous women in the Andes, called cholitas in Bolivian slang, the main difference being that instead of bowler hats they wear khaki green police-style caps. Some don fluorescent traffic vests. (Photo by Juan Karita/AP Photo)

Austrian alpine skiers (LtoR) Georg Streitberger, Klaus Kroell, Max Franz, Joachim Puchner, Romed Baumann pose in the Olympic Rings on February 4, 2014 at the Mountain Olympic Village at the Rosa Khutor Alpine centre, four days prior to the start of the 2014 Sochi Winter Olympic Games. (Photo by Fabrice Coffrini/AFP Photo)

A passenger plane comes into land over a field containing horses at Heathrow Airport on August 11, 2014 in London, England. Heathrow is the busiest airport in the United Kingdom and the third busiest in the world. The airport's operator BAA wants to build a third runway to cope with increased demand. (Photo by Peter Macdiarmid/Getty Images)

Madson of Santos reacts during the match between Santos and Palmeiras as part of Brasileirao Series A 2022 at Vila Belmiro Stadium on May 29, 2022 in Santos, Brazil. (Photo by Carla Carniel/Reuters)

Festival goer with phallus logo t-shirt during the Kanamara Matsuri Steel Phallus Festival at Kawasaki, Japan on April 2, 2017. The Kanamara Matsuri or Festival of the Steel Phallus is held on the first Sunday of April at the Kanayama shrine. The shrine celebrates a legend of a steel pen*s and was frequented by prostitutes who wished to pray for protection from sexually transmitted diseases. Visitors now wish for easy delivery, marriage and matrimonial harmony. Because of the large steel phallus the unusual festival has become a tourist attraction attracting many overseas visitors and is used to raise money for HIV charities. Phallus shaped candy, carved vegetables, decorations, and a big parade are all part of the festival. (Photo by DELETREE/SIPA Press/Rex Features/Shutterstock)