A series of mountain chains frame the Levantine coast, growing in height as they approach modern-day Lebanon. These provided a natural defense along the important coast, and the few passes through these mountain ranges were the focal points of movement and communication. For this reason, these locations were where many crusader castles were erected. Bristling with fortifications, these impressive structures were occupied by orders of knights who came to the Holy Land with the Pope's blessing, and who have gained a most romantic status in history. These Crusaders were called al Faranj ("Franks") by the Arabs in the Holy Land, reflecting the French origins of many of the knights, even though the knights, soldiers, and pilgrims came to the Holy Land from all over Europe, and in particular from southern Italy, Germany, and England. For the men who built and manned these castles, they were much more than buildings surrounded by stone walls or wooden palisades. They were also more than a headquarters for knights and their armies during battle, or a storehouse for goods in the remoteness of the Levant. These castles were the central focal point for those who held them and those trying to conquer them, and it would not be an exaggeration to claim that castles were the nexus for much activity and conflict within the Holy Lands. At the same time, the castles were filled with the hustle and bustle of activity caused by a wide range of actors even in times of relative peace and stability. Men-at-arms were the soldiers who manned the castle, protected the borders of the Crusader states, and followed the orders of their noble knight lords, but the castles also served as a gathering place for skilled craftsmen such as blacksmiths, potters, stone masons, bakers, carpenters, and the like. Many served as religious centers in their own right, containing at least one chapel of either Christian or Muslim faith.