This concept stands in logical continuity with Buckminster Fuller’s Biosphere. It proposes to create a big atrium under a glass dome thermoformed under electronic control on site over a light steel structure, with two vertical curtain-wall facades of stainless steel and glass at at its north and its south like a slice of ice cube. This envelop, with its limits determined by different solar angles, lays like a soft silk veil on top of three distinct buildings and touching them delicately just to let the air flow between the different volumes. The huge slope flowing down in waves and forming the roof has a purpose: integrates itself completely to its direct urban environment: we realize such integration by letting solar rays, even at noon of the winter solstice 24° 66’ North to penetrate in the halls of the Contemporary Arts Museum, situated at the north-east.