
You can either search for individual tours on respective city, state, or country tourism websites some are available (still for free) through Apple's iTunes website.

The free download is particularly prevalent for European destinations, where dozens of city government and local tourism authorities recognize the added value of having such easy access to great tours on the cities' websites. All you need is Internet connection, (free) podcast software and a way to listen to your files (MP3 player or similar). The fact that it happens to be free, makes the deal even sweeter.

Which makes the idea of being able to find a tour I like and just download it - either in a printed version with a map or in audio format straight on to my iPod - is perfect. Although I like the idea of taking a formal walking tour in a new city, I am not too keen on doing it with a large group and would prefer to do things at my own pace.
