Archinect recently showcased the Hemeroscopium House in Spain, with plenty of pictures and a video (3:57).
According to the architect, Antón García- Abril, of  Ensamble Studio:
Ensamble Studio:
It took us a year to engineer but only seven days to build the structure, thanks to a total prefabrication of the different elements and a perfectly coordinated rhythm of assembly.
About the name:
For the Greek, Hemeroscopium is the place where the sun sets.
   model: Hemeroscopium House
   
   size:  400 m2 (4,300 sf)
    
Hat tips: Treehugger on March 6, 2009 and Eco Architecture on March 7, 2009.