Okay, if you enjoy history try The Decline And Fall Of The Roman Empire (Volume 1) - each volume is around 48hrs each, it might sound like a lot of hours listening but it's a great book and taught me a lot about Roman history.
If you're into sci-fi try the old BBC radio series Journey into Space, Operation Luna (the first in the series).
If you're into sci-fi try the old BBC radio series Journey into Space, Operation Luna (the first in the series).