This has to be one of those "believe it or not" stories. Boston had so much snow last winter that city street department workers had to find a place to pile it up to get the streets passable. That pile turned into a 75 foot tower of snow that has taken until yesterday to totally melt. As to the reason it took so long to melt during warm weather months: "It was laden more than 80 tons of garbage, transforming it into a repulsive trash heap as the snow melted. Officials say two snowstorms struck after residents put their trash out, and it got swept up by plows."