2004 Venice Architecture Biennale, Venice, ItalyUsing the promised future of clean and quiet hydrogen fuel as a catalyst, Park Tower enables occupants to drive up the skyscraper without noxious fumes or excessive engine noise, transforming the time-consuming suburban commute into the seductive urban ascent, complete with panoramic views and urban garden stops. While employing a commonplace mix of programs - retail space on the ground level, hotel and office space in the middle, and residential on the top - Park Tower combines in the manner of a double helix a new intertwining of a continuous drive-through parking garage and a sandwich of occupiable architectural space. The sectional matings of each program's function and parking are maximized, using the specific ratio of parking-to-program type to establish the rules of exchange.