What makes Iceland one of the world's most livable countries

File photo taken on April 14, 2007 shows the visitors visiting Skogafoss waterfall, which is located 100 km southeast of Reykjavik, the capital of Iceland. Iceland is the westernmost country in Europe with rich water resources and it has a great many waterfalls, some of which have a drop of more than one hundred meters and look extremely spectacular. Xinhua/Reuters