Iñigo Aragón and Pablo López Navarro may be Spain’s fastest-rising design stars. Together the pair are Madrid-based Casa Josephine Studio, which they started in 2012 after graduating from university with degrees between them in photography, art history, and fashion design. Their country house in the tiny town of Sorzano in northern Spain’s Rioja wine region is  airy, cheerful, and impeccably designed with authentic lines, color-blocked rooms, a mix of pieces from different periods and styles and a feel-good atmosphere.