What are the smallest countries in the seven continents?

Europe: Vatican City 0.44 km <0.01 % of world's land mass

Australia & Oceania: Nauru 21 km <0.01 % of world's land mass

North America: Saint Kitts and Nevis 261 km <0.01 % of world's land mass

Asia: Maldives 298 km <0.01 % of world's land mass

Africa: Seychelles 455 km <0.01 % of world's land mass

South America: Suriname 163,820 km 0.11 % of world's land mass

Antarctica: Antarctica unknown