The atomic mushroom cloud from The Priscilla Test, part of Operation Plumbbob, raised over Fremont Street on June 24, 1957. Las Vegas News Bureau photographer Don English accidentally captured this iconic image when he slept in and had to rush downtown to capture the blast on top of the drugstore. English recalls that he looked up, “and by gosh all of a sudden there was the mushroom cloud right between Vegas Vic and the Pioneer Club, absolute perfectly in the center.” This famous image was published around the world and won Life Magazine’s “picture of the week.”