An Indian policeman wearing a virus themed helmet rides on a horse during an awareness rally aimed at preventing the spread of new coronavirus in Hyderabad, India, Thursday, April 2, 2020. (Photo by Mahesh Kumar A./AP Photo)

Secret arrive during the 1st Gaon Chart K-POP Awards at Blue Square on February 22, 2012 in Seoul, South Korea. (Photo by Chung Sung-Jun/Getty Images)

Only after World War II did the secret spill: Ōkunoshima, located in the Inland Sea of Japan between Hiroshima and Shikoku, was the top-secret site for manufacturing chemical warfare. When the factories were closed down, a number of exotic wild rabbits were seen freely roaming the island. They were assumed to have been the test subjects for the chemical weapons, which the military failed to eradicate when the factory was demolished.

Picture dated June 18th, 2023 shows Cambridge University students on their way to the Emmanuel College May Ball in the rain. Hundreds of undergraduates dressed in lavish ball gowns, tuxedos, and even kilts, for the extravagant end-of-term party, which had the theme Where Lyrics Come To Life. The ball, which cost £110 a ticket, featured a rum bar, as well as a host of entertainment, including limbo, belly dancing, a bubbleologist, tarot reading and a magician. (Photo by Bav Media)

From left, Brazilian model Adriana Lima, British model Lily Donaldson, Brazilian model Alessandra Ambrosio, US model Taylor Hill, and US model Martha Hunt acknowledge applause during the Victoria's Secret Fashion Show inside the Grand Palais, in Paris, Wednesday, November 30, 2016. The pulse-quickening, celebrity-filled catwalk event of the year: the Victoria's Secret fashion show takes place in Paris with performances from Lady Gaga and Bruno Mars. (Photo by Francois Mori/AP Photo)

From the waters edge a New York policeman urges two young children to put their bathing costumes back on. (Photo by Ed Clarity/Keystone/Getty Images). July 1949

Victoria's Secret Angel Martha Hunt celebrates the 2015 What Is s*xy? List in San Diego on September 26, 2015 in San Diego, California. (Photo by Joe Scarnici/Getty Images for Victoria's Secret)

Victoria's Secret model Adriana Lima poses with her Madame Tussaud's wax likeness at a reveal event at the Victoria’s Secret store in Herald Square in the Manhattan borough of New York November 30, 2015. (Photo by Brendan McDermid/Reuters)