Reykjavik (meaning: 'Smokey Bay') is the world's most northern capital city and with a population of only 120,000 it retains a small town atmosphere. Abundant water and volcanic activity in the area are harnessed, powering the entire city with clean energy. In the depth of winter, Reykjavik receives only 4 hours of daylight, while during the summer, the nights are almost as bright as the days.