Originally the site of the Shanghai racecource (Gambling was so popular that by the 1920s the Shanghai Race Club was the 3rd wealthiest corporation in China). It later became a sports arena, then a camp for prisoners in the war, then a mortuary (for dead bodies), then it was concreted over for military parades then turned into Renmin Park and Square. The race course clock tower is the only original thing left. The bomb shelters have become shopping malls.