This delightful small apartment is located in Barcelona in a 17th century building. Several years ago a family of architects bought the place and transformed into an ultra-modern dwelling. The interior consists of a series of cubes, or boxes. The most impressive one is the glass bathroom cube that can be closed with blinds for privacy. Each of the other areas of the apartment – master bedtoom, kitchen, second bedroom and a living room – can also be isolated into a closed cube. There is even a garden cube that communicates the two bedrooms. Watch the fascinating tour shot by Fair Companies for more details.