Greece has its roots in ancient Greek civilization, considered the cradle of Western civilization. It is the birthplace of democracy, Western philosophy, the Olympic Games, Western literature, and the foundations of mathematics and science. Athens is the capital of Greece, which is located in southeastern Europe. Some of Greece's most famous cities include Athens, Thessaloniki, Patrai, and Iraklion. Important monuments include the Acropolis and Agora in Athens. While agriculture was historically important, Greece now relies more on industries like manufacturing, shipbuilding, and tourism.