Bright sun hanging on the northem horizon forced me to keep my sunglasses on even though it was well in to the night. the summer sun here,on the northem tip of European continent, aroused my curiosity. if was already 11 p.m but it's still glowing brightly, the rays still strong. Every year for a period of two months, June and July, there is no night in this part of the northem hemisphere as the su doesn't go down the horizon