The Sicily podcasts were the reason I chose Sicily as a destination. I found them invaluable when planning my trip because they are informative and successfully convey a sense of place.
Rick's podcasts: www.ricksteves.com/radio/archive.htm
Hungary's English language podcast gives you a personal take on things to do, places to go and people to see in Budapest and in Hungary. You can listen to the show on your computer or your mp3 device.
Melbourne is a very liveable and visitable city with great cafes, shopping and history. On a recent visit, I found one of the best things I did was take a pod tour of Melbourne's Laneways.
I used a free podcast from Talk'N Tours which was great but there are others available.
I got to see street art, quirky shops and a good bit of the central city sights as I wound my way along the back streets and through alleyways I otherwise wouldn't have.
Station: Starts at Flinders St Station
www.talk-n-tours.com
There is a fantasic amount of interesting history around Shakespeare, brothels, bear bating pits and pubs along this stretch of river. I recently downloaded an audio guide for my mp3 player from a website at www.podguides.co.uk. Really good intersting walk recorded by a proper Blue Badge guide.
It's an atmospheric podcast that lasts an hour and a half and covers all the colonial centre of Singapore. Lots of characters and music and growling lions etc. There's a ghost, a Malay king, an Indian convict and Lee Kuan Yew himself!! Actually, I bet this is the only dramatic representation of Lee Kuan Yew ever performed, let's see if it gets banned!