紐埃

Every sovereign country across all six inhabited continents.

Australia, New Zealand, and the island nations of the Pacific.

对比横跨七个数量级面积的18个国家——从梵蒂冈、摩纳哥和瑙鲁到尼日尔、毛里塔尼亚与澳大利亚等广袤大国。