I am planning a flight from Auckland to Europe and am trying to find out which places are convenient to stop over. I once knew a website where you can simply enter the two airports, and it shows you all the possible stop overs you can have with different airlines, but I can't find this site anymore. The site should be less about finding cheap flights (which would be an awesome bonus, of course) but more about finding places to visit in between.  

Any idea where to find something like this?