Architect Javier Corvalán's house in rural Paraguay is very unique. It's roof can retract! Anyone who lives inside can tilt the entire roof upward by 25 degrees to create a warm, open air living room.

Corvalán calls the home Caja Oscura. When its roof is in place, a tiny pinhole on its southern facade turns the second floor into a gigantic camera obscura.

Designed for a filmmaker, it is divided into two basic parts: There's a sandstone foundation that contains the kitchen and service core, and an upper level that contains the living and sleeping areas.

Who knew living in an aluminum tin box could be so stylish.  [Domus via Dezeen]

Images and video by Pedro Kok.