This is the recently completed addition to the Tel Aviv Museum of Art, designed by Preston Scott Cohen. “The building,” according to the architect “represents an unusual synthesis of two opposing paradigms for the contemporary museum: the museum of neutral white boxes and the museum of architectural spectacle.” The spectacle of the building arises from a geometry problem: an irregular, triangular site for several large, rectangular galleries. The product is a mass of slopes and facets covered in concrete that matches the existing museum; also a lightfall that pours light deep into the interior of the building.
P.S. For more photos, see Arch Daily.