The document discusses four major movements in architecture from the late 20th century: Postmodernism, Deconstructivism, High-Tech, and Contextualism. Postmodernism rejected the minimalism of Modernism in favor of ornamentation and references to historical styles. Deconstructivism used fragmented and non-rectilinear shapes influenced by Cubism. High-Tech architecture prominently displayed the building's technical components and structure. Contextualism emphasized responding to a building's site through vernacularism, regionalism, and critical regionalism.