2. San Marino
image source: maps-of-europe.net
With only 61 square kilometers, San Marino is entirely surrounded by the rest of Italy. In fact, San Marino is so small that it can claim both the title of the 3rd smallest country in all of Europe and the 5th smallest country in the entire world.
Not many small countries are able to say that! There are only 30,000 people who live in San Marino. Turns out, they’re also one of the wealthiest countries. Blink and you’ll miss it, though!