Crusaders Fortress is built on the edge of old Caesarea village. Once it was a bustling city but now just few crumbling walls and gates can be seen. Famous Muslim leader Saladin managed to conquer this Caesarea in 1187 from the Christian occupation but Richard I of England took it back in 1191 and it was passed on to king Louis IX of France. In 1251, Louis IX built these fortifications to stop the Mamluks of Egypt from entering the city. 
Today’s entrance was part of the fortress which was used as a doorway to the city and castle and it was reached by a bridge from outside. The doors of the castle were closed from the inside with wooden bars and were protected from the outside by an iron grill, which was lowered through a slot from the ceiling. 
The wall which ran around the fortress was 4m thick and 1.6km long. This wall was protected by a moat but Sultan Baybars managed to scale this wall and conquered the city in 1265. The Mamluks, fearing a return of the Crusaders, razed the citys fortifications to the ground.