John F. Kennedy International Airport is one of the busiest airports in the New York City area, The Statue of Liberty, located on Liberty Island, is one of the cities biggest attractions.
There is a major difference between formal and functional regions. Formal regions are huge areas that are characterized by many activities. A functional region is a region that serves other regions, like major cities serving rural areas.
Key Difference: Formal is often associated with the conventional or etiquette. Formal and informal are antonyms to each other. Formal defines an official style or manner. On the other hand, informal can be associated with a casual or a friendly manner. Thus, anything that is associated with the 'formal' attribute is regarded to be in accordance to certain rules and regulations or based on a standard format.