A staff member demonstrates how she puts on the helmet of a mock space suit at the C-Space Project Mars simulation base in the Gobi Desert outside Jinchang, Gansu Province, China, April 17, 2019. The facility – comprising several interconnected modules including a greenhouse and a mock decompression chamber – opened its doors to the public. (Photo by Thomas Peter/Reuters)

In this April 7, 2015 photo, a tourist peers through the door of a jail cell inside the now empty Garcia Moreno prison during a guided tour for the public in Quito, Ecuador. According to tour guides, this cell was nicknamed “Los Polillas”, or “The Moths”. Here, in a room designed to hold two prisoners, about 15 inmates with drug addictions were locked in overnight by the prison gangs that controlled daily life. The locked-in prisoners were also known to prostitute themselves to get access to drugs. (Photo by Dolores Ochoa/AP Photo)

A Palestinian youth jumps with a sword as he demonstrates his ninja-style skills for the photographer in front of the ruins of buildings, that were destroyed in 2014 war, in the northern Gaza Strip January 29, 2016. The youths, who have been receiving martial arts training at local clubs in Gaza for the past two years, decided to form a team to hold regular shows in the hope that the publicity generated will eventually lead to them being invited to participate in international contests. (Photo by Mohammed Salem/Reuters)

The 27 curvy candidates for this year's eagerly-awaited Miss Bumbum pageant showed off all their assets as they paraded on one of Sao Paulo's busiest streets – Avenida Paulista – for the launch promotional race on August 8, 2016. Unsurprisingly, they stopped traffic. The girls will be fighting it out for the coveted title in a public vote before being whittled down to 15 finalists for the grand finale in November. (Photo by Leo Marinho/Splash News and Pictures)

Tibetan monks in ghoulish costumes perform during a ceremony to chase away the “demon king” to bring peace and happiness for the Tibetan New Year at the Yonghegong Lama Temple in Beijing, Sunday, February 19, 2023. The annual event has returned after China lifted all bans on public gatherings from the outbreak of COVID-19. (Photo by Andy Wong/AP Photo)

A child prays next to a woman during Eid al-Fitr prayers in Bucharest, Romania, Monday, May 2, 2022. Members of the Romanian Muslim community gathered for Eid al-Fitr prayers, marking the end of the holy fasting month of Ramadan, at the Dinamo stadium in the Romanian capital, in the largest Muslim public gathering of the year in Romania. (Photo by Andreea Alexandru/AP Photo)

A mechanical horse-dragon made of wood and steel is presented to the public in Nantes, western France on August 26, 2014. This horse-dragon, created by the French artist Francois Delaroziere of “Les Machines de l'île” (The Machines of the Isle), is the hero of the show "Long Ma" which will be presented in Beijing on October 17, 2014 as part of the fiftieth anniversary of the relationship between France and China. (Photo by Jean-Sebastien Evrard/AFP Photo)

A bunker at aformer Swiss artillery fortress called Heldsberg stands near the town of St. Margareten, Switzerland March 22, 2015. Heldsberg fortress, located on the Swiss-Austrian border near the River Rhine and Lake Constance was built from 1938 to 1940 and remained in military use until 1992. Since 1993 it is open to the public as Fortress Museum Heldsberg. (Photo by Arnd Wiegmann/Reuters)