A plane that folds to create three different spaces.
A very narrow corridor.
An open space above.
A synthesis of the two spaces below, that is almost closed like a tunnel but in the meantime open.
There is a different view from the inside of the corridor depending from the side we enter it. it can be seen as a very close space or an open one.
From the outside the view is the reverse of the inside.
The light that comes to the corridor also makes a special effect of blades of light.
The axonometry and details.
The monge of the whole protostructure with the two projects.