Get ready to go green. In this issue, we explore blurred boundaries between exterior and interior spaces, including Carve and Concrete’s reworking of a square in Amsterdam and a tunnel-like pedestrian bridge by Tobias Rehberger and Schliach Bergemann & Partner. With Junya Ishigami, we examine the possibilities for architecture and nature to converge. Then we head indoors – but to spaces that access or accent the outside world at every opportunity, like Sou Fujimoto’s breathtakingly transparent house in Tokyo and Ryue Nishizawa’s Hiroshi Senju Museum in Karuizawa with its lyrical links to the landscape.