New York's retro futurism is particularly interesting becuase the city itself is an anachronistic view of modernism - an antique skyscraper city. Each one of these proposals is not just a past vision of the future, but a past vision of the future which is now in the past itself.The 15 items here, range from the purely conceptual work of Italian 60s architects, Superstudio, who designed a continuous monument around the earth, crashing through lower Manhattan to Lindenthal's serious proposal for an absolutely gargantuan bridge across the Hudson, with towers bigger than some of the tallest skyscrapers and where the keystone, still exists today.Along with Buckminster Fuller's well known idea for a geodesic dome over mid-town Manhattan, is his lesser known one for an array of huge, cooling tower like housing projects in Harlem, each holding 40,000 people. There are a couple of representative engineering projects showing plans to dam the Hudson or drain the East River and an array of transportation concepts, including Raymond Loewy's idea for a helicopter pad covering Bryant park, 10 storys above ground.Weirdest of all is the proposal for a spherical nuke proof 2nd city, below ground.