a confrontational stance to architectural history, wanting to "disassemble" architecture. While postmodernism returned to embrace the historical references that modernism had shunned, possibly ironically, deconstructivism rejected the postmodern acceptance of such references, as well as the idea of ornament as an after-thought or decoration. In addition to Oppositions, a defining text for both deconstructivism and postmodernism was Robert Venturi's Complexity and Contradiction in Architecture (1966). It argues against the purity, clarity and simplicity of modernism. With its publication, functionalism and rationalism, the two main branches of modernism, were overturned as paradigms. The reading of the postmodernist Venturi was that ornament and historical allusion added a richness to architecture that modernism had foregone. Some Postmodern architects endeavored to reapply ornament even to economical and minimal buildings, described by Venturi as "the decorated shed." Rationalism of design was dismissed but the functionalism of the building was still somewhat intact. This is close to the thesis of Venturi's next major work, that signs and ornament can be applied to a pragmatic architecture, and instill the philosophic complexities of semiology. The deconstructivist reading of Complexity and Contradiction is quite different. The basic building was the subject of problematics and intricacies in deconstructivism, with no detachment for ornament. Rather than separating ornament and function, like postmodernists such as Venturi, the functional aspects of buildings were called into question. Geometry was to deconstructivists what ornament was to postmodernists, the subject of complication, and this complication of geometry was in turn, applied to the functional, structural, and spatial aspects of deconstructivist buildings. One example of deconstructivist complexity is Frank Gehry's Vitra Design Museum in Weil-am-Rhein, which takes the typical unadorned white cube of modernist art galleries and deconstructs it, using geometries reminiscent of cubism and abstract expressionism. This subverts the functional aspects of modernist simplicity while taking modernism, particularly the international style, of which its white stucco skin is reminiscent, as a starting point. Another example of the deconstructivist reading of Complexity and Contradiction is Peter Eisenman's Wexner Center for the Arts. The Wexner Center takes the archetypal form of the castle, which it then imbues with complexity in a series of cuts and fragmentations. A three-dimensional grid runs somewhat arbitrarily through the building. The grid, as a reference to modernism, of which it is an accoutrement, collides with the medieval antiquity of a castle. Some of the grid's columns intentionally don't reach the ground, hovering over