Cities are capable of unexpected renewal, with change always a possibility. Its one reason they are so exciting.

Our guests this weekÊare working on renewing cities, but in very different ways.

has been a driving force behind the transformation of many global destinations: Soho in New York, South Beach in Miami and now Center City, Philadelphia. Tony's special talent is using imagination and design to revive depressed, undervalued historic districts.

Bruce Katz studies what can be considered the less glamorous side of the city. Bruce is Director of Brookings'ÊMetropolitan Policy ProgramÊand his most recent research looks at the history of neighborhood renewal in America and the policies that have worked, those that havent and what we can learn from both.

We'll talk about design and cities on "Smart City."