Tiny Denmark, with five and a half million habitants, is the land where people feel most satisfied with their lives, says a new report released by the Paris-based international organization (OECD) in May 2009. In fact, it has been topping the list in the happiness stakes for more than 30 years. Four centuries, after the prince Hamlet's tragedy, the little country seems have become the epicentre of bliss. Jing Hu reports.