The answer is Cosmopolitan.
The word cosmopolitan comes from a Greek term that could be interpreted as "citizen of the world". It is an adjective that allows describing everything that is common to several countries. In the same sense, the term is widely used to refer to various cities in the world to refer to a particular city where many people from different parts of the world live, who live in many cultures and who are open to all kinds of cultural influences, coming from wherever they may come.