When commonly glass used for window or door, it is amazing that someone uses for flooring. Glass is transparent. Though it is only applied in small portion, but gives high impact to a home decoration. The glass floor will give transparency to the lower level. Further, glass is heat resistance, and breakage resistance, even chemical resistance too.
Craftsman house deals with natural material that use almost in every inch of the building. It comes with wood, stone, and steel that combined well. Though it has small area, but will give anything you need. Look at this craftsman that filled with modern furniture items as well.