Two Belgian architects created a four story, eight foot wide, livable space between two buildings in Antwerp, Belgium. Each floor was designed for a different activity. From bottom to top, each floor was designed for a different activity: working, eating, living, and sleeping.
Less than eight feet wide, the bedroom is equipped with not only a bed and closet, but a wall- hung toilet as well.
A drop-in bathtub is located on the rooftop!