With urban density expected to soar over the next 100 years, what will the future city look and feel like for its inhabitants? Across the street from City Hall in downtown Dallas, a neglected parking lot spanning one square block will soon be transformed into one of the worlds most sophisticated models for sustainable urban development. Recently, Urban Re:Vision announced the winners of its international design competition, Re:Vision Dallas, which drew hundreds of entries from the worlds top architecture firms and city planners in 26 countries. The self-sustaining inner-city block will run off the grid, using advanced technologies to capture wind, solar, water and geothermal resources. Meant to contribute to an array of revitalization programs in Dallas, the block will generate resources, and support and empower the community, all while acting as a working model of sustainability for cities around the world.