The Keret House is the world's narrowest house designed by Polish architect Jakub Szczesny and situated in a 3-foot-wide gap between two buildings in Warsaw, Poland. As one can imagine, the wedged home is not without its shortcomings (no windows, ladder access only and very tiny appliances) but at least there's sunlight exposure, thanks to its semi-transparent, polycarbonate walls and ceiling. The Keret House will serve as a temporary home for traveling writers. Interested in moving in? Check out this video of the interior view.