Vicky's quiz All First-Level Subdivisions of Oceania on a Map is already challenging enough if you remove the lesser populated subdivisions! How many subdivions of Oceania with more than half a million inhabitants can you name?
Evil aliens have decided to kill everyone on Earth! Fortunately, they've given you two minutes to save as many as you can. All you have to do is name a country to save everyone in it.
Not being funny but isn't the title a bit misleading? It sounds like you're saying that there are over 500k subdivisions not that there are over 500k inhabitants.