In the 1980s, the global economy experienced a recession which slowed building activity. Structural expressionism emerged as a bridge between modernism and postmodernism, emphasizing the display of technical building components. Deconstructivism also arose, rejecting limiting architectural rules and pursuing non-rectilinear, fragmented forms. Notable architects from this period included Frank Gehry, Rem Koolhaas, and Zaha Hadid, who designed landmark deconstructivist buildings like Gehry's Vitra Design Museum. Neo-futurism embraced sustainable cities combining arts and technology.