By the mid-20th century, it had come to dominate the downtowns of some American cities, largely through some really spectacular office buildings like Lever House in midtown Manhattan, designed by Skidmore, Owings and Merrill.
Do połowy XX wieku zdominowało śródmieścia wielu miast USA, głównie dzięki spektakularnym biurowcom, jak Lever House na Manhattanie, projektu Skidmore'a, Owingsa i Merrilla.