Athens is a global city and one of the biggest economic centres in southeastern Europe. It has a large financial sector, and its port Piraeus is both the largest passenger port in Europe and the second largest in the world. The heritage of the classical era is still evident in the city, represented by ancient monuments and works of art, the most famous of all being the Parthenon, considered a key landmark of early Western civilization. The city also retains Roman and Byzantine monuments, as well as a smaller number of Ottoman monuments.
