Yan Mengjie sits on a boat as she poses for photos near Erhai Lake in Dali Bai Autonomous Prefecture, Yunnan province, China on June 16, 2019. Erhai is one of China's biggest freshwater lakes and a backdrop to the city of Dali, which drew 47 million visitors last year, more than triple the number in 2010. Hotels and homestays have sprung up along a 31-mile (50-km) stretch of lakeside road to accommodate tourists. But officials ordered some hotels demolished after President Xi Jinping during a 2015 visit called for the lake to be protected. (Photo by Tingshu Wang/Reuters)

Tami Varma, right, and her brother Robin, the grandchildren of Devendra Varma, a scholar of English gothic tales and an expert in vampire lore, pose in coffins at the Bran Castle, in Bran, Romania, Monday, October 31, 2016. A Canadian brother and sister are passing Halloween night curled up in red velvet coffins in the Transylvanian castle that inspired the Dracula legend, the first time in 70 years anyone has spent the night in the gothic fortress, after they bested 88,000 people who entered a competition hosted by Airbnb to get the chance to dine and sleep at the castle in Romania. A portrait of medieval prince Vlad the Impaler is placed on the wall. (Photo by Vadim Ghirda/AP Photo)

People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. Yi Peng refers to the full moon day in the second month according to the Lanna lunar calendar (the twelfth month according to the Thai lunar calendar). Swarms of Lanna-style sky lanterns are launched into the air where they resemble large shoals of giant fluorescent jellyfish gracefully floating through the sky. The festival is meant as a time for tham bun, to make merit. Khom loi are made from a thin fabric, such as rice paper, stretched over a bamboo or wire frame, to which a candle or fuel cell is attached. When the fuel cell is lit, the resulting hot air is trapped inside the lantern and creates enough lift for the khom loi to float up into the sky. (Photo by Athit Perawongmetha/Reuters)

In this April 27, 2020 photo, a health worker helps another as she fainted because of exhaustion and long working hours during a swab test drive for COVID 19, in New Delhi, India. Two and a half months of nationwide lockdown kept numbers of infections relatively low in India. But with restrictions easing in recent weeks, cases have shot up, raising questions about whether authorities have done enough to avert catastrophe. Half of Delhi’s 8,200 hospital beds dedicated to COVID-19 patients are already full and officials are projecting more than half a million cases in the city alone by July 31. (Photo by Manish Swarup/AP Photo)

Russian policemen detain a participant taking part in an unauthorized protest against Russia's partial military mobilization due to the conflict in Ukraine, in downtown of Moscow, Russia, 24 September 2022. Russian President Putin announced in a televised address to the nation on 21 September, that he signed a decree on partial mobilization in the Russian Federation. Russian citizens who are in the reserve will be called up for military service. On 24 February 2022 Russian troops entered the Ukrainian territory in what the Russian president declared a “Special Military Operation”, starting an armed conflict that has provoked destruction and a humanitarian crisis. (Photo by Maxim Shipenkov/EPA/EFE)

Russian policemen detain a person taking part in an unauthorized protest against Russia's partial military mobilization due to the conflict in Ukraine, in downtown Moscow, Russia on 24 September 2022. Russian President Putin announced in a televised address to the nation on 21 September, that he signed a decree on partial mobilization in the Russian Federation. Russian citizens who are in the reserve will be called up for military service. On 24 February 2022 Russian troops entered the Ukrainian territory in what the Russian president declared a “Special Military Operation”, starting an armed conflict that has provoked destruction and a humanitarian crisis. (Photo by Maxim Shipenkov/EPA/EFE)

Shooting star by Tony Wu, US/Japan. Winner, underwater. The electrifying reproductive dance of a giant sea star. As the surrounding water filled with sperm and eggs from spawning sea stars, Wu faced several challenges. Stuck in a small, enclosed bay with only a macro lens for photographing small subjects, he backed up to squeeze the undulating sea star into his field of view. The dancing posture of spawning sea stars rising and swaying may help release eggs and sperm, or may help sweep the eggs and sperm into the currents where they fertilise together in the water. Kinko Bay, Japan. (Photo by Tony Wu/Wildlife Photographer of the Year)

Fighting Infections (single image) | Fighting Pandemic by Sudipto Das. “It’s exhausting. A tram conductor in Kolkata, India, wears protective clothing from head to toe even in the heat of a summer afternoon. This was when restrictions were easing after India’s first Covid-19 lockdown – public transport was running, but staff were advised to suit up like this. We’ve all grown used to saluting the efforts of healthcare workers, but plenty of other people in public-facing jobs have performed gruelling duties too to keep people safe”. (Photo by Sudipto Das/Wellcome Photography Prize 2021)