The period considered the most important of Greek culture is that which develops between the 7th and 4th centuries BC. It focuses on religious architecture - temples - with great rigor of dimensions, establishing mathematically precise proportions. A striking feature of Greek architecture is the use of columns, establishing characteristic "orders": Doric, Ionic and Corinthian.
Classical architecture is based on rationality, order, beauty and geometry.
With the idea of research defined in ancient Greek culture, a beautiful detail was noted in the columns in an Ionic way. The Greek key.
The Greek key is a decorative border constructed from a continuous line formed by repeated shapes. This symbol is a common element in Greek art. It is among the most important symbols of ancient Greece. It symbolizes infinity and unity.