New York City and Cape Town South Africa are two cities with two very different histories. This week on the show we're talking about the history of New York and the future of Cape Town.

Guy Lundy is the CEO of Accelerate Cape Town, a business-led initiative that brings together all the stakeholders in the Cape region to develop a long-term vision for sustainable economic growth in South Africa. He'll tell us about the unique challenges Cape Town faces and the solutions they can share with so-called "second cities" all over the world.

And, while all cities are looking to build toward the future, New York City has a legal mechanism designed to protect its past. Anthony C. Wood is the author of the book "Preserving New York: Winning the Right to Protect A City's Landmarks" which traces the history of New York's struggle to protect its natural and architectural heritage.

Additional support for Smart City is provided by National Trust Main Street Center, host of the 2009 Main Streets Conference: Becoming Main Street 2.0, in Chicago, March 1-4, 2009 focusing on how to use new technology in Revitalizing America's traditional business districts to build sustainable communities. Visit http://www.mainstreet.org/conference.