What lies between a house and a street? This was the question Japanese architect Sou Fujimoto addressed in the design of House N in Oita, southern Japan. The clients' mandate for the house was for something pure and simple. Fujimoto's solution? A white three-shelled box structure that blurs the boundaries between outdoors and indoors and connects to both the sky and the street. For more on the architect's work, visit Sou Fujimoto Architects.