See the famous Bicycle Dive of Death, a place so cold water instantly freezes, and a rainmaking machine that really works. Then, Retro reporters bring you an in-depth report on a World War II secret weapon we now use every day and take you back in time to the underwater atom-bomb test on the Bikini Islands. See the astonishing pictures as a geyser of water shoots a mile high while ships sink to the ocean floor. Don’t miss the chaos when bulls horn in on a Spanish festival in this episode of Retro News.