A Tamil devotee lights an oil lamp at a religious ceremony during the Diwali or Deepavali festival at Ponnambalavaneshwaram Hindu temple in Colombo, Sri Lanka on October 24, 2022. (Photo by Dinuka Liyanawatte/Reuters)

Israeli soldiers play the parts of wounded civilians during a drill simulating a toxic spill from an attack on a train in Beersheba, southern Israel, 13 January 2016, as Home Front medical teams, fire fighters and police carry out rescue operations. The large scale drill is the concluding exercise of the Fourth International Conference on Healthcare System Preparedness and Response to Emergencies and Disasters and includes some 200 of the world's experts on health system readiness from around the world. The conference is dealing with all types of medical emergencies from terrorist attacks to natural disasters. (Photo by Jim Hollander/EPA)

The Belgian photographer Anton Kusters spent two years photographing the Yakuza, Japan’s most notorious gang. He returned with some amazing images that he made into a book called “Odo Yakuza Tokyo”. (Odo means “the way of the cherry blossom” and is the credo of the Yakuza family he followed. Photo: An erotic danser picks up fake 2-dollar bills during a private dance with a Yakuza customer in a strip tease bar in Kabukicho, a bar which is controlled by the ODO family – 2010. (Photo and caption by Anton Kusters)

Two men using an electric power saw to fell a tree circa 1940's. (Photo by Keystone View/FPG/Getty Images)

Japanese Yuuka Hasumi, 17, and Ibuki Ito, 17, also from Japan, who want to become K-pop stars, perform during their street performance in Hongdae area of Seoul, South Korea, March 21, 2019. (Photo by Kim Hong-Ji/Reuters)

British fashion model Twiggy plays around on the bumper cars at the Bertram Mills Circus in London, England on January 10, 1967. (Photo by AP Photo)

Cosplayers at China Joy 2023, the city’s Digital Entertainment Expo & Conference in Shanghai, China on July 30, 2023. (Photo by Costfoto/NurPhoto/Rex Features/Shutterstock)

Brain-on-a-chip. Dazzling in green and magenta this image shows the nerve fibres (in green) produced by neural stem cells (in magenta) as they grow on a synthetic gel. Captured by a technique known as confocal microscopy, the image is part of research shedding light on how tinkering with the environment can affect the way in which nerve fibres grow. (Photo by Collin Edington and Iris Lee/Massachusetts Institute of Technology/Wellcome Images)