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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A rainbow in Iceland A rainbow in Iceland (Photo: TTstudio / Shutterstock)

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2. Iceland

What’s the real reason Iceland jumped seven spots from No. 9 to No. 2 in World Happiness between the 2013 and 2015 reports? Its women live longer than its men, of course! The average lifespan of women in Iceland is 84, two years older than the rest of the world. And if that’s not impressive enough for you, consider the stunning scenery here, including the Svartifoss Waterfall flanked by beautiful basalt columns.

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