Dozens of places are missed... Maldives, Malaysia, Indinesia, India, Sri Lanka, Morocco, Egypt, entire eastern and Western Europe - they are all beautiful and unique...
However, one needs 20-25 hours to travel from Qatar to North and South America ;) Toronto, Vancouver, New York, Las Vegas, L.A., Brazil, Argentina, Peru, Cuba, Mexica, Bahamas, Hawaii, and much more - all these are great vacation destinations too :):)