The utilization of the castle with the purposes of defence and settlement in Ankara which is the capital city of the civilization forms throughout the history has enabled the repair and the maintenance of the castle at each period and thereby to stand until today.

It is well-known that the internal ramparts of the current two rows of ramparts which exist from 7th century have been built before the external ones. The information related to the physical structure of the castle which is one of the visit points of both the European and Turkish excursionists beginning from 16th century points out that the white stone with four layers have been used by superposing and the height of the each stone is 4,5 m and wide houses are located at the Internal Castle. Most of the structures which are located at the Region of Public Houses have been constructed between 16th and 17th centuries when the Ottoman Empire was powerful. The increase in the merchant caravans which were traveling at the old Silk Road around the Ankara Castle between China and Europe at that era has caused the formation of the Region of Public Houses. The area at the front of the gateway which is at the south of the Ankara Castle and the level area between the existing Cengelhan is called as At Pazari which has been used as market place at 13th and 14th centuries. The industrial revolution has affected the economy of the Ottoman Empire negatively. Ankara textiles have lost its competitive capacity against the English textiles and other export goods of European countries.