ROSSOBAVARIA, GERMANYIt’s not often you find wabi-sabi principles laid out deep in the heart of the Allgäu in Bavaria, amid the meadows, hills and cow-filled pastures. But that ancient Japanese philosophy has informed the renovation of this farm, its barns and stables. Lime plaster lines the walls, mattresses are covered with organic linen and cheerily big kitchens mean guests can cook up all the regional ingredients they find in the farm shop. This part of Germany is incredibly pretty, with fairy-tale castles, deep canyons and high-altitude walking trails. And it now has an earthy yet smart place for nature lovers to stay.