2. Castellon De La Plana, Spain…

The ‘BF house,’ as it’s known, was designed by a team of architects from OAB and ADI Arquitectura, and boy did they work hard. Sitting 25 metres above the forest, this house is based on a 3,000 square meter plot, and features plenty of glass, wood and wired stairs. It’s like a luxuriously contemporary tree house. Win.