The biggest unpopulated country is Antarctica, which has no permanent residents and is only inhabited by researchers and scientists seasonally.
Greenland, an autonomous territory of Denmark, is considered the least populated country in the world. With only around 56,000 inhabitants, it has the lowest population density among all territories, making it one of the most sparsely populated places on Earth.
Greece is the most southern country in Europe.
Switzerland is the most mountainous country in Europe.
Italy is the most populous country in Mediterranean Europe. It is the fifth most populated country in all of Europe.
The most polluted country in Europe is Russia. In fact, Russia is the 3rd most polluting country in the world.
Germany is the wealthiest country in Europe.
Wyoming
green land
There is no such figure as to what is the most unpopulated city. I have seen cities with a population of about 6 people, but there are possible cities with less people.
Europe is a continent, not a country
By sheer numbers, yes, the United Kingdom is the most obese country in Europe. However, by percentage of population, Malta is the most obese country in Europe.