U.S. Secretary of State John Kerry stands inside the historic Shackleton hut near McMurdo Station, Antarctica, Friday, November 11, 2016. Kerry became the highest-ranking American official to visit Antarctica when he landed for a two-day trip on Friday. He's been hearing from scientists about the impact of climate change on the frozen continent. Kerry's aides described the trip as a learning opportunity for the secretary of state. He has been receiving briefings from scientists working to understand the effects of climate change on Antarctica. Kerry has made climate change an intensive focus of American diplomacy during his term, and had previously spent decades working on the issue as a U.S. senator. Trump has called climate change a hoax and said he would “cancel” U.S. involvement in the landmark Paris Agreement on global warming. (Photo by Mark Ralston/Pool Photo via AP Photo)

“Artist of the light”. While shooting sunrise in the Vermilion lakes area of Banff national park, Canada, I met a fellow photographer on the scene. Most of the time, we tried not to get in each other's way, however, just by accident, I snapped a picture with him in it working on his tripod settings, and it turned out to be a great photo compared to my sunrise shots. (Photo and caption by Victor Liu/National Geographic Traveler Photo Contest)

ATTENTION! All pictures are presented in high resolution. To see Hi-Res images – just TWICE click on any picture. In other words, click small picture – opens the BIG picture. Click BIG picture – opens VERY BIG picture.

“Stacked Supercell with Lightning”. This huge mesocyclone supercell was near the Nebraska / Kansas border on the night of June 22nd, 2012. What a stunning structure! (Photo and caption by Jennifer Brindley/National Geographic Traveler Photo Contest)

ATTENTION! All pictures are presented in high resolution. To see Hi-Res images – just TWICE click on any picture. In other words, click small picture – opens the BIG picture. Click BIG picture – opens VERY BIG picture.

A Mexican tourist ended up with broken ribs after attempting to make the most of a photo opportunity with some deer in October 2023. Gian Carlo Triacca, 42, was on holiday in Greece when he was attacked from behind. His wife, Erika, 40, managed to record the moment the deer charged. (Photo by Gian Carlo Triacca/Caters News Agency)

Giant panda Shuixiu's two babies are pictured at their room in Shenshuping base of China Conservation and Research Center for the Giant Panda on November 3, 2021 in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province of China. (Photo by An Yuan/China News Service via Getty Images)

The Rafflesia Arnoldi flower (Amarphophallus titanum) which has been cultivated is seen in Palupuah Village, Agam District, West Sumatra, Indonesia, on April 13, 2022. The West Sumatera Nature Conservation Agency (BKSDA) estimates around seven Rafflesia Arnoldi flowers will bloom in Palupuah Village this year. (Photo by Adi Prima/Anadolu Agency via Getty Images)

A Donald Trump impersonator with a bikini clad model stops at a hot dog vendor near Trump Tower on October 25, 2016 in New York, as part of a performance art piece by British artist Alison Jackson. The event is to promote Jackson's new show, “Private”, in New York, which features staged photographs portraying the private lives of public individuals. (Photo by Timothy A. Clary/AFP Photo)

A female vendor sells Christmas and New Year paraphernalia from her stall at a roadside in Abidjan, Ivory Coast, 16 December 2022. A few days before the Christmas holidays and with the celebrations of New Year's Eve and New Year's Day in sight, the shopping for seasonal decoration in the West African city is at its peak. (Photo by Legnan Koula/EPA/EFE)