Iceland

Iceland is the world's 18th largest island, and Europe's second largest island after Great Britain. The main island is 101,826 km2 (39,315 sq mi), but the entire country is 103,000 km2 (39,768.5 sq mi) in size, of which 62.7% is tundra. There are thirty minor islands in Iceland, including the lightly populated Grímsey and the Vestmannaeyjar archipelago. Lakes and glaciers cover 14.3% of its surface; only 23% is vegetated. The largest lakes are Þórisvatn reservoir: 83–88 km2 (32–34 sq mi) and Þingvallavatn: 82 km2 (32 sq mi); other important lakes include Lagarfljót and Mývatn. Jökulsárlón is the deepest lake, at 248 m (814 ft).
Geologically, Iceland is part of the Mid-Atlantic Ridge, a ridge along which the oceanic crust spreads and forms new oceanic crust. This part of the mid-ocean ridge is located above a mantle plume, causing Iceland to be subaerial (above the surface of the sea). The ridge marks the boundary between the Eurasian and North American Plates, and Iceland was created by rifting and accretion through volcanism along the ridge.
Many fjords punctuate Iceland's 4,970-kilometre (3,088-mile) long coastline, which is also where most settlements are situated. The island's interior, the Highlands of Iceland, is a cold and uninhabitable combination of sand, mountains and lava fields. The major towns are the capital city of Reykjavík, along with its outlying towns of Kópavogur, Hafnarfjörður and Garðabær, nearby Reykjanesbær where the international airport is located, and the town of Akureyri in northern Iceland. The island of Grímsey on the Arctic Circle contains the northernmost habitation of Iceland, whereas Kolbeinsey contains the northernmost point of Iceland. Iceland has three national parks: Vatnajökull National Park, Snæfellsjökull National Park, and Þingvellir National Park. The country is considered a "strong performer" in environmental protection, having been ranked 13th in Yale University's Environmental Performance Index of 2012.