The Hemeroscopium House located in Las Rozas, Madrid, Spain is an Amazing architectural work by Ensamble Studio. It took them a year to engineer the project but only seven days to build the structure, thanks to a total prefabrication of the different elements and a perfectly coordinated rhythm of assembly. The house materializes the peak of its equilibrium with what they ironically call the “G point”, a twenty ton granite stone, expression of the force of gravity and a physical counterweight to the whole structure. More info on Archinect.com