The roof of this house in Paraguay can be lifted open like the lid of a box (+ movie).
Located in the countryside outside capital city Asunción, the house was designed by Paraguayan architect Javier Corvalán as the holiday home of a film-maker.
The owners are often away for long periods of time, so Corvalán was asked to create a building that could transform between a comfortable residence and a hermetically sealed box.
The base of the two-storey house is surrounded by walls of locally sourced sandstone, which support the concrete floor slab and galvanised-steel structure of the level above.
To raise the roof of the house residents simple wind a manual winch, causing the rectilinear structure to tilt open and reveal the kitchen and living room housed inside.
When closed, a pinhole allows the windowless space to function as a camera obscura, projecting an upside-down image of the surroundings onto the MDF panels that line the interior walls.
The bottom floor houses a bedroom and bathroom. Mezzanine glazing wraps around the edges of this space, creating a visual separation between the two floors.
Concrete tiles cover the floor, while the staircase leading upstairs is constructed from cantilevered stone blocks.
We've featured a couple of houses with moving walls and floors. Others include a residence that transforms from a villa by day to a fortress by night, plus a home with mobile walls and roof that can be moved to cover and uncover parts of the interior.
Photography and movie are by Pedro Kok.
Sign up for a daily roundup
of all our stories