Behind the scenes at Rock it Out, a circus show fusing live music and death-defying stunts in West Thurrock, Essex on April 10, 2025. They will attempt a British first: a double somersault on a rotating wheel. (Photo by Jeff Moore)

Mary Ellen Mark was an American photographer known for her photojournalism / documentary photography, portraiture, and advertising photography. She photographed people who were "away from mainstream society and toward its more interesting, often troubled fringes". Here: Amanda and her cousin Amy, Valdese, North Carolina, 1990. (Photo by Mary Ellen Mark)

A double rainbow is seen above a woman holding an umbrella and selling snacks along the road in Siaya county, Kenya on May 3, 2020. (Photo by Thomas Mukoya/Reuters)

Pasua Turner jumps double dutch as people take part in a Juneteenth event along Black Lives Matter Plaza on Monday June 19, 2023 in Washington, DC. (Photo by Matt McClain/The Washington Post)

Cambodian motorcyclists drive near a double rainbow, following the conclusion of a ceasefire deal between Cambodia and Thailand, in Siem Reap, Cambodia, on July 29, 2025. (Photo by Daniel Ceng/Anadolu via Getty Images)

The double compound eyes of a male St. Mark's fly (Bibio marci), submitted by Dr. David Maitland from Feltwell, UK. (Dr. David Maitland)

A sign marks a railway crossing next to the troubled Kruemmel nuclear power plant on June 2, 2011 in Geesthacht, Germany. The German government recently announced it will phase out the country's 17 remaining nuclear reactors by 2022 in a policy initiative that represents a radical reversal from its previous policy and was sparked by the disaster at Fukushima. Kruemmel went into operation in 1983 but was taken offline following a fire in 2007. (Photo by Sean Gallup/Getty Images)

A broken picture frame is left in the tsunami-hit Arahama area, three months and two days after the magnitude 9.0 earthquake and subsequent tsunami on June 13, 2011 in Sendai, Miyagi, Japan. Japanese government has been struggling to deal with the earthquake and tsunami as well as the troubled Fukushima Daiichi Nuclear Power Plant. The fear on outbreak of virus infectious disease are mounting due to the humid rainy season on the corner and delay of the clearing the debris. (Photo by Kiyoshi Ota/Getty Images)