Take a tour of the world's happiest countries

With the release of the 2015 World Happiness Report, we're sharing what makes the top 15 happiest countries so great.

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Darling harbor in Australia Darling harbor in Australia (Photo: Andy Tam / Shutterstock)

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10. Australia

Australia scores highly for the amount of citizens who volunteer – and with such high civic engagement, it's earned its spot at No. 10 on the list. With such a special natural environment and plenty of fun to be had outdoors, it's easy to see why folks want to give back. 

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