The concept of happiness, it seems, is elusive and lacking a universal definition that is applicable to all. This elusive nature of happiness is evident in the varying rankings of the happiest countries around the world. Some rankings list the cold, gray countries of the north – Finland, Norway, Denmark, and Iceland – as the happiest. Others, however, place tropical countries like Costa Rica, Vanuatu, Vietnam, and Colombia at the top. So, which of these rankings holds true? It is likely that both are accurate and perhaps other rankings hold validity as well.