Gaza, that is what I said, but I didn't say you don't have to go around the world. You do (hence the name). Specifically, you have to have a trans-Atlantic and a trans-Pacific. So to include Australia, you can either go through Asia (example: LHR-LAX-SYD-BKK-LHR) or Africa (example: LHR-LAX-SYD-JNB-LHR). But in either case, it's four continents.