Who doesn't appreciate a vibrant, exciting city? On Smart City, we especially appreciate the people who make them. Our guests this week are two such people, both from Australia.

Rob Adams is Director of Design and Culture for the City of Melbourne where he has built a remarkable track record for reanimating the city and making it sustainable. A native of Zimbabwe, Rob has more than 30 years experience as a practicing architect and urban designer. Now with the City of Melbourne he is producing design-research based urban projects and strategies, and has won more than 65 state and national awards for excellence.

Brian Newman is chief executive of the Sydney Olympic Authority. It's his job to create a new precinct at the site of the 2000 Summer Olympics with its own energy and its own economic momentum.