3D reconstruction of Buhen Fortress
Now submerged under Lake Nasser the fortress also included the administration for the whole fortified region of the Second Cataract. Its fortifications included a moat three meters deep, drawbridges, bastions, buttresses, ramparts, battlements, loopholes, and a catapult. The walls of the fort were about 5 metres (16 ft) thick and 10 metres (33 ft) high.
Credits: Egypt: Engineering an Empire, 2006
Read more: https://madainproject.com/buhen_fortress