Ok, this is a long shot!
I used to play this as a kid, so it's dated around the late 70's, it had a travel theme, you had to travel to various places around the world. I seem to recall it had some great bits (like travel documents etc) and that you had to visit Addis Ababa - that's pretty much all I can remember (except thinking it was cool at the time!)
Travel Go maybe?
I loved it as a kid: all that paper money in different currencies...