Byblos is one of the oldest inhabited cities in the world civilization tracing back to around 8800 years B.C.[4][5] The city contains historical ruins including a castle and the church which were originally built by the Crusaders in the 12th and 13th centuries AD. The castle holds a historical story where it has been built, surrendered and regained by Crusaders. It takes shape of the Crusaders designs on the columns, their wall designs and the entrance structures.