World’s coolest nationalities: Mongolia #4; Japan, China, Singapore on list, but… January 22 / Robert Koehler / 43 Comments So CNNGo came up with a list of the world’s 12 coolest nationalities… America (USA! USA! USA!) came in #5. Mongola — yes, Mongolia — came in at #4, led by actress Khulan Chuluun. Singapore came in at #2, Japan at #7 and China at #9.