This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Kal'at Al Mina is Fatimid citadel in Ashdod-Sea site on the southern coast of modern city of Ashdod. It was built during the Ancient Arab Era (640-1099). The rectangular fortress (60/40 meters) has four guard towers, one at each corner. The towers were enclosed by a wall six to seven meters high. Two huge gates in the wall gave access to the stronghold. The fortress was destroyed in earthquake in 1033.
http://en.wikipedia.org/wiki/Ashdod-Sea
http://en.wikipedia.org/wiki/Kal%2527at_Al_Mina