The
manifesto Futurist Architecture was published in August 1914, supposedly by Sant'Elia, though this is subject to debate. In it the author stated that "
the decorative value of Futurist architecture depends solely on the use and original arrangement of raw or bare or violently colored materials"
[citation needed]. As described in this manifesto, his designs featured bold groupings and large-scale disposition of planes and masses creating a heroic industrial expressionism. His vision was for a highly industrialised and
mechanized city of the future, which he saw not as a mass of individual buildings but a vast, multi-level, interconnected and integrated urban
conurbation designed around the "
life" of the city. His extremely influential designs featured vast monolithic
skyscraper buildings with terraces, bridges and aerial walkways that embodied the sheer excitement of modern architecture and technology.