Old town field is significant in that it derives its parceling out the period of Greek colonization. After the founding of the colony, the Greeks made ​​the division of land near the city, and the field is divided into about 73 rectangular particles of equal size about 181 x 905 m Some particles are distributed within the plots into smaller particles of 181 x 181 m area of ​​the field was recorded more than 100 archaeological sites. UNESCO in July 2008. on its World Heritage List and put the Stari Grad Plain. In the opinion of the World Organization states that the local vineyards and olive trees remained "virtually unchanged" from the first colonization of the ancient Greeks and how unique the geometric division of the country, which was used in ancient times.