Images from 2012 architecten on flickr
Brigitte at Inhabitat beat me to the "everything but the kitchen sink" joke about this temporary structure built in Amsterdam two years ago, entirely out of kitchen sinks.
The panels are connected to a sort of constructivist scaffolding and are now open on the bottom end, the inside space has a comfortable breezy openness. On this picture it really has become a box in the sky, since the blue of the house meets heaven: Air-castle made of stainless steel.
Not much to the interior....