A partially frozen Niagara Falls is seen on the American side lit by lights during sub freezing temperatures in Niagara Falls, Ontario March 3, 2014. (Photo by Mark Blinch/Reuters)

Comandos de Salvamento rescuers Maria Martinez (L) and Ana Chichilla attend to a wounded homeless man in San Salvador, El Salvador July 16, 2016. The man was attacked with a machete by suspected gang members. In 2015, El Salvador registered a record 103 homicides per 100,000 habitants, making it one of the most dangerous countries in the world outside a war zone. But for many young people who have few chances to distance themselves from rivalries between so-called maras in their schools and neighbourhoods, a civil-society organisation called the Comandos de Salvamento, or Rescue Corps, has been a refuge. (Photo by Jose Cabezas/Reuters)

A Cucumber and a Chuta Cholero hug during the traditional festival “Desentierro del Pepino” (unearthing the Cucumber) to mark the beginning of carnival on January 21, 2024 in La Paz, Bolivia. People dug up the cucumber from the cemetery and walk through the streets with two characters, the Ch'uta and the Chola. (Photo by Gaston Brito/Getty Images)

Developed for the British American Ambulance Corps, this new motorcycle ambulance is capable of speeding wounded soldiers 90 miles an hour from the front lines to field hospitals. Its springs are synchronized with the patient's heartbeat to avoid increasing fever when traveling over various Terrain. Viewing it in New York August 27, 1941, are left to right: constable Herbert Scott of England, driver; William E. Detlor, whose firm developed the vehicle; M. W. Stand, inspector-general of Civilian Defense, and Maj. Edward Riekert, also. (Photo by AP Photo)

An Afghan street vendor carries bread on his head ahead of the upcoming holy fasting month of Ramadan in Kabul, Afghanistan, Sunday, June 5, 2016. Muslims across the world will be observing the holy fasting month of Ramadan, when they refrain from eating, drinking and smoking from dawn to dusk. (Photo by Rahmat Gul/AP Photo)

Journalists walk through the corridor of the stopped third reactor at the Chernobyl nuclear power plant in Chernobyl, Ukraine April 20, 2018. (Photo by Gleb Garanich/Reuters)

Pope Francis looks at an acrobat of the “Black Blues Brothers” performing during his weekly general audience in St. Peter's Square at The Vatican, Wednesday, Nov. 30, 2022. (Photo by Andrew Medichini/AP Photo)

A meerkat stands guard as her pups cuddle at Mountain Zebra National Park, South Africa early November 2025. (Photo by Nadine Leonard/Two Point O Media)