There are many places on this planet earth which act as a source of income for the home country because of there popularity. If you take a look at the world map, you will realize that there are many a places on the globe which you know of only because of some of the natural or man made features which exist in that country. There are some countries of the world which have exceptionally beautiful falls. The other places are well known because of the beautiful forest it has. But almost always the reason behind the popularity of the country is the tourist resorts of that country. Same is the situation with the countries which have a lot of historical places. Egypt for example is best known for its pyramids. Similarly, The Walled city of Baku is a place which helps the home country to earn a lot through this city.