Three Column Designs / Doric – Ionic – CorinthianThere are 3 types of column order that you will always come across while visiting historical monuments. They were called Dor, Ion, Corinth, and in ancient architecture temples were built with these orders.
Firstly, the Doric Order, which has an important bearing. Later, the more aesthetic Ionic Order and finally the Corinthian Order, which is more or less the same as the Ionic Order, but instead of the column head cleat, is decorated with acanthus leaves.
The research of Ancient Greek architecture is mainly based on the examination of the ruins, which is what we usually do.
When you go to an Ancient City, you will find one of the Three Columns Order in any temple made under the influence of Ancient Greek Architecture living the strongest period in Alexander the Great.
If you like to travel we want to introduce you these superficial columns that always will come out .
Remotely, however, there are quite distinct differences between the Doric, Ionic and Corinthian Orders.
The Doric Order / B.C. 600
In the Doric Order, the column tapering from top to bottom integrates directly with the floor without sitting on any level.
In total there are 20 grooves that are not too deep.
Compared to the Corinthian and Ionic Orders, the Doric columns are thicker, column heads unadorned and tidy. This provides an advantage in the transport of heavy structures.
As you move up from the bottom to the top in the Doric Order, there is a slight bloat in the center of the examined column. It's called Entasis  and it's done to prevent an optical illusion that seems to be twisting inward.
This order, which had been quite used in the Early Period, lost its importance due to the spread of the Ion order.
The Ionic Order / B.C. 400
In the Ionic Order, the Columns are thinner and longer than the Doric Order.
The column with 24 grooves is not on the floor but on a rounded column pedestal.
Entasis is not available.
The head is not flat but has a shape similar to the ram's horn called volute.
The Ionic Order can differ locally because it is not based on certain rules such as the Doric Order.
The Corinthian Order / B.C. 500
The Corinthian Order, which shows the same characteristics as the Ionic Order, is distinguished by the difference of the column head.
The Corinthian Column Head, which requires considerably fine workmanship, is completed with acanthus leaves, which can be two or three rows, which surround the middle part, which resembles baskets.
The oldest known building built according to this order is the Choragic Monument of Lysicrates in Athens, constructed from 335 to 334 BC.
 Entasis : Which means to strain in Greek.
 Volüt : Spiral scroll characteristic of Ionic capitals and also used in Corinthian and composite capitals.