Europe is not just a land of modern business, fairy tale castles and towering cathedrals. Germany’s Lake Konigssee was filled by melted glaciers after the last ice age, and is now nestled within misty cliffs of the Berchtesgaden Alps. Only electric ships, row boats, and pedal boats are allowed to visit this wonderfully clear lake, which is considered the cleanest lake in Germany. Yodelers and trumpeters have found that the acoustic quality of the cliffs and forests allow noises to echo as much as seven times. After a day at the lake, visitors can also enjoy sledding in the world’s first permanent artificially refrigerated skeleton track.