The cascading windows again, with the columns built up between them. The most common question I get from visitors is "why the holes?" The "cobber's thumb" holes improve drying time and will later allow the earthen plaster to grab on the walls.
Gary Zuker built this cob home in Austin, Texas, USA without any previous building experience. At the time few cob homes were being built so Gary researched European 15th century cob homes at his local university. After working with a few cobbers Gary realised he had all the tools he needed to build his home, determination, creativity, ingenuity and himself. Three years later his home was complete. More at www.naturalhomes.org