Chastelet

The castle was built during the Crusades by the Knights Templar and the forces of the Kingdom of Jerusalem but was destroyed by the army of Saladin in 1179.

[4] The castle was intended to act as a bulwark against Muslim incursions into the Kingdom of Jerusalem and to strength protection for pilgrims and traders through Christian Palestine.

[1][2] Some 1,500 men were camped at the fortress when Saladin began an initial attack that was repulsed in June.

[1] A heavy intense siege resulted in the fall of the barbican (gatehouse) but the castle held for several days until miners succeeded digging a tunnel that brought down the main tower.

[3] The surviving defenders were executed and the armoury was seized, including some 1,000 coats of armour and the castle was extensively demolished to prevent further use by the Christian forces.

The castle ruins seen from above.
The geological fracture seen on the remains of the northern wall of the Mesad.
Ruins of the castle walls.