This paper is concerned with urban walking and the work of contemporary artists and writers who take to the streets in order to explore, excavate and map hidden spaces and paths in the city. The focus is on an audio-walk by the Canadian artist Janet Cardiff entitled The missing voice (case study B), which is set in east London. Connections are also drawn with other recent projects in the same area by Rachel Lichtenstein and Iain Sinclair. The paper discusses how these artists raise important issues about the cultural geographies of the city relating to subjectivity, representation and memory. Cardiff’s audio-walk in particular works with connections between the self and the city, between the conscious and unconscious, and between multiple selves and urban footsteps. In so doing, she directs attention to the significance of dreams and ghostly matters for thinking about the real and imagined spaces of the city.