I've just stumbled upon Pamphlet Architecture an alternative to mainstream architectural publishing that encourages architects and writers to put forth their ideas, theories, and designs in modest, affordable booklets.

No 13 in the series, Edge of a City by Steven Holl is an attempt to intensify the metropolitan landscape and counter urban sprawl in six cities. In each scheme, living, working, recreational, and cultural facilities are juxtaposed in new pedestrian sectors to promote new communities.

One of the utopian projects/ideas called Parallax Skyscrapers, is a series of towers linked by skybridges. These modernist visionary projects of the 1970-80s are becoming realizable, in that China is now the testing ground for the heroic super-modernism of the 1970s, in that the quest to add a horizontal dimension to the skyscraper has moved to Beijing. It is an architectural language we can trace back to Fritz Lang's Metropolis.