Do you mean which country outside of the USA? We love the USA. But if we travel I say our most favorite country to travel in is the United Kingdom.
Canada is the largest country in North America. The US is the most populous. (The same remains for all of the Americas).
It is very popular all over Europe and South America, it would be hard to pin point where it is most popular. Soccer (football) is the most popular sport in the world. It is popular in all over Europe, Asia, Africa, and the Americas. There is not one country specifically where soccer is the most popular.
Baseball or football
Fried Chicken.
the most popular country is Rome
Anything in the north and west are huge for hunting
Venezuela.
There are no continents in the U.S. A continent is a group of countries.
Probably RCA
Mcdonalds
Christmas pyramids are a popular form of decoration in Germany. They are the predecessor of Christmas Trees which are popular in much of Europe and North America.
Yes Australia is the most popular country