Bordj Tamentfoust

Bordj Tamentfoust is an octagonal fortress on the northeastern edge of Algiers Bay, protected by a deep moat with a central drawbridge entrance. The structure contains multiple chambers including a kitchen, prayer room, and armory, arranged systematically around an internal courtyard.

The fortress was built in 1661 under Ismail Pasha's rule and incorporated stones from the ancient Roman ruins of Rusguniae into its walls. From the 16th to 19th centuries it functioned as a quarantine station before becoming a historical museum in 1999.

The fort served as a ceremonial center during Ottoman rule, where cannon fire announced the arrival of new Pashas. This practice reflected its role as a symbol of authority in the region.

The fort sits on a peninsula jutting into the bay, making it vulnerable to strong coastal winds and changing sea conditions. Wear sturdy shoes when visiting since the pathways are uneven, and plan your visit for cooler daylight hours due to the open exposure.

The fortress's octagonal design was a deliberate choice that allowed defenders to cover the surrounding area with cannon fire from corner towers. This geometric approach to fortification design made it harder for attackers to find blind spots around the walls.