Lindau Lighthouse, Lake Constance, Germany

The harbor entrance at Lindau on Lake Constance, with the lighthouse on one mole and the stone Bavarian Lion on the other, the Alps across the water. First lit in 1856, it is Germany's southernmost lighthouse and the only one in Bavaria, a reminder that some of the most photographed lights guard lakes rather than oceans. It has a clock on its face, and visitors can climb it in season for the view over the island town.