How technology is being used in the care of the elderly in the Basque country.
Prof Dr Uwe Krueger, CEO of Atkins, discusses future-proofing major cities.
Jonathan Collins, Principal Analyst at technology market research firm, ABI Research discusses health apps.
Ben Whitaker, CEO of Masabi, explains how the company's mobile ticketing services for public transport, operational in Boston and San Diego, can slash congestion and the need for more infrastructure.
Julian David, CEO of techUK, says that UK technology companies need to focus on exporting their products to compete with big companies like Twitter.
Steve Leonard, Executive Deputy Chairman of the Infocomm Development Authority of Singapore thinks the Southeast Asian city-state has potential to be the world's first smart nation.
CNBC's Tom Mackenzie explores the latest technology when it comes to building the places that most of us across the globe call home.
Jens-Michael Janssen, project developer at Hochtief, and Jurgen Klein, senior project manager at Patrizia, discuss their respective smart-house projects in Hamburg, Germany.
Wolfgang Schmidt, state secretary for the City of Hamburg, discusses what makes Hamburg a leading sustainable city.
Peter Lindlahr, managing director at hySolutions, discusses sustainable cars and how they can be used to help the environment.
John Fitzgerald, CEO, Asia Pacific at the Urban Land Institute discusses Beijing's urbanization progress as investors anticipate land reforms from the Third Plenum meeting.
In the first part of our themed week on Innovation Cities, CNBC's Tom Mackenzie takes a look at what's being done right now to make our cities more sustainable.