A German Air Force Officer sits astride a dead boar outside a house where he is stationed near the Western Front, in this 1918 handout picture. This picture is part of a previously unpublished set of World War One (WWI) images from a private collection. The pictures offer an unusual view of varied and contrasting aspects of the conflict, from high tech artillery to mobile pigeon lofts, and from officers partying in their headquarters to the grim reality of life and death in the trenches. The year 2014 marks the centenary of the start of the war. (Photo by Reuters/Archive of Modern Conflict London)

Dancers dressed as futuristic characters perform during a show at The Robot Restaurant on June 29, 2014 in Tokyo, Japan. The now famous Robot Restaurant opened two years ago in Kabukicho area of Shinjuku at an estimated cost of 10 million U.S. dollars. Performances are held three times a day and cater mostly to foreign tourists. The cabaret style shows include bikini clad futuristic dancers, performers dressed as robots and a host of large scale robots and vehicles controlled with remotes by stage hands dressed as Ninjas. (Photo by Chris McGrath/Getty Images)

Hot air balloons fly over Igualada during an early flight as part of the European Balloon Festival on July 10, 2014 in Igualada, Spain. The early morning flight of over 30 balloons was shorter than expected due to windy weather. This flight is organised as a curtain raiser for the four-day European Balloon Festival. Now is the 18th year of the most important hot air Balloon event in Spain and one of the biggest in Europe. (Photo by David Ramos/Getty Images)

A soldier supporting anti-government opposition groups carries a rocket-propelled grenade launcher on a street in the Fagah area of Mogadishu, Somalia Sunday, April 25, 2021. Gunfire was exchanged Sunday between government forces loyal to President Mohamed Abdullahi Mohamed, who signed into law on April 14 a two year extension of his mandate and that of his government, and other sections of the military opposed to the move and sympathetic to former presidents Hassan Sheikh Mohamud and Sharif Sheikh Ahmed. (Photo by Farah Abdi Warsameh/AP Photo)

A murales showing a Swiss guard kissing a colleague, by street artist Laika, is seen on the day of the annual Pride march, in Rome, Saturday, June 26, 2021. This year's march comes amid widespread concern in Europe about legislation in Hungary that will ban showing content about LGBT issues to children and a controversial Vatican communication to Italy, criticizing a law that would extend additional protections from discrimination to the LGBT community. (Photo by Gregorio Borgia/AP Photo)

First year cadets of the Vladivostok branch of Russian Internal Affairs Ministry's Far Eastern Law Institute march in formation during a ceremony to take oath of allegiance at a monument to Internal Affairs Ministry officers who lost their lives in line of duty in Vladivostok, Russia on September 24, 2021. 27 cadets took oath of allegiance during the ceremony. (Photo by Yuri Smityuk/TASS)

A gilrl plays games in a shopping mall in Beijing, China, 24 November 2021. Demographers in China have called for more efficient implementation of supportive measures to encourage births to address the country's dwindling population growth as country's birthrate last year was 8.52 births per thousand people, the lowest level since 1978, according China Statistical Yearbook 2021. (Photo by Wu Hong/EPA/EFE)

Members of the media take pictures of the pre-Inca “Mummy of Cajamarquilla”, which is presumed to be between 800 and 1200 years old, in Lima, Peru December 7, 2021. The “Mummy of Cajamarquilla” found by archaeologists from San Marcos inside a burial chamber of about three meters long and a depth of 1.40 meters in the Cajamarquilla archaeological site, east of Lima. (Photo by Sebastian Castaneda/Reuters)