Vatican city is the world smallest country with the area 0.44 km².
Ten Smallest country of the world
1) Vatican City - 0.44 km²
2) Monaco - 2.02 km²
3) Nauru - 21 km²
4) Tuvalu - 26 km²
5) San Marino - 61 km²
6) Liechtenstein - 160 km²
7) Marshall Islands - 181 km²
8) Saint Kitts and Nevis - 261 km²
9) Maldives - 298 km²
10) Malta - 316 km²
