 In Detroit, the General Motors Building opened in 1920 and the Fisher Building in 1928.Cleveland acquired the Union Trust Building in 1923 and the Terminal Tower in 1929; the latter, built by the Van Sweringen brothers, was, for a short period, the second tallest building in the world.Seattle had built Smith Tower in 1914, and the Los Angeles local government granted itself an exemption from city planning restrictions in order to build the Los Angeles City Hall in 1928.