This 200 square meter townhouse on Schlegelstraße in Cologne is designed by German architects Jack Viola and Antonio Molina. It is very thin but deep. The house is wrapped in a gray covering and feature 22 feet deep rooms. Even though it is quite dark outside, the interior is light and airy thanks to white walls and ceilings, a lot of large windows and skylights. Even though there are black wood floors everywhere, they don’t dominate. There is also a very nice garden space behind the house with an awesome glass extension.