Iranian bodybuilder Sharareh Nobahari, 30, assists her fitness trainees at a gym in Tehran, Iran on September 20, 2019. (Photo by Nazanin Tabatabaee/Reuters)

A firefighter passes through fire in a firefighting drill on December 7, 2021 in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province of China. (Photo by Zeng Peng/VCG via Getty Images)

Martin Rietze is a “volcano-chaser”, a particular breed of photographer who takes big risks for big shots. He was able to capture destructive and beautiful forces of nature at work on a trip to Japan in February 2013. His photos show the Sakurajima Volcano, an active volcanic who's record-breaking 1914 eruption sent lava flows across the island. (Photo by Martin Rietze/Guzelian)

First prize. Taken over Bali Barat National Park, Denpasar, Bali. Made with a GoPro Hero 2 camera. (Photo by Capungaero)

A member of the Revolutionary Armed Forces of Colombia (FARC) pose for a picture at a camp in the Colombian mountains on February 2005. (Photo by Frank Piasecki Poulsen)

English rapper Alesha Dixon (R) and English actress and media personality Amanda Holden arrive for Britain's got Talent Auditions at London Palladium on January 18, 2022 in London, England. (Photo by South West News Service)

Miss Universe contestant Carmina Olimpia Cotfas of Romania poses dressed in the national costume for Miss Universe Romania 2021, created by Israeli designer Aviad Arik Herman, in the hallway of the Romanian Atheneum, the reputed 19th century built concert hall, in Bucharest, Romania, Monday, November 22, 2021. The 70th Miss Universe pageant is being staged in the southern Israeli resort city of Eilat on December 12. (Photo by Andreea Alexandru/AP Photo)

“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.