Feeling happy? An annual global index of the happiest cities puts Minneapolis at the very top of its list in the United States. Minnesota's largest city joins world-class counterparts such as Singapore and London in an index by the global Institute for Quality of Life, which ranks cities using various factors that contribute to the happiness of residents — or lack thereof. While tops in the U.S., Minneapolis doesn't appear on the list until the 18th spot. The Happy City Index categorizes cities as gold, silver or bronze, based on 24 factors divided into five key categories that include citizens, governance, environment, economy and mobility. What constitutes a city of happy people will differ for a child looking for a good playground, a corporate professional in search of an efficient commute or a senior citizen, the institute said. Areas under consideration in the determination of quality of life include education, social inclusion of residents, accessibility of public transport an...