Gray, wet, windy—in the winter, Germany’s capital likes to give its visitors the cold shoulder. Right behind the Hackesche Höfe, seventh heaven begins for visitors suffering from stress and frostbite. Dark but not gloomy, simple but not cold: Yi-Spa blends traditional Asian massage therapies with a modern ambience. Treatments such as the papaya body wrap, the mango honey facial, and the aromatic oil massage are the best recipe to fight the wintertime blues.