What achievements can be considered the most significant contribution of the Greeks to the treasury of world culture?

The ancient Greeks made many cultural discoveries that influenced the later life of Europe. They developed a system of naturalistic sculpture, which was then adopted by the masters of the Renaissance. Special importance was also attached to architecture and applied painting (for example, vase painting). The development of verbal arts is worth mentioning separately. This is literature (including drama), and philosophy, and rhetoric, etc. In the monuments of literature of the era of Antiquity, the idea of humanism was first heard.