Another of the Guardian's treasures waiting to be discovered is its city walks podcast. You can download the audio files for free!!!

Author Ian Rankin takes you around Edimburgh!
http://www.guardian.co.uk/travel/audio/2007/jan/10/cityguides885

Dickens's London audio tour. There's a map to go with it!
http://www.guardian.co.uk/books/audio/2011/nov/24/dickens-audio-tour-david-copperfield
http://image.guardian.co.uk/sys-files/Guardian/documents/2011/09/22/dickens_walk.pdf

Poet Roger McGough's vision of his hometown.
http://www.guardian.co.uk/travel/audio/2006/nov/27/cityguides880

Steve Bell's Brighton
http://www.guardian.co.uk/travel/audio/2006/dec/21/cityguides882