Columned road is extending from the northern harbor up to the southern harbour.
This columned road is 225m long and 25m wide. The road breaks in the square shaped area in the middle in a way to form a wide angle so this road does not form a straight line.
There are shops, stoas and the public buildings behind these stoas on its both sides. The columned road was covered with stone and there were various statues in front section of stoa.