This lecture explores a conceptual terrain that has at various times promised interconnections between diverse fields of urban thought ranging from the interpretation of post-industrial landscapes to uncertainties over the status of the 'post-human' subject. The history of the cyborg concept will be illustrated with various examples drawn from architecture, cinema and the visual arts. In particular, the lecture will suggest a tension between threatening and liberatory understandings of recent entanglements between the body and technology in urban space. Matthew Gandy is Professor of Geography and Director of the UCL Urban Laboratory. Recent publications include 'Learning from Lagos' in New Left Review and Concrete and Clay: Reworking Nature in New York City.