As Islam is the dominant religion throughout Algeria, you shouldn't miss the Grand Mosque when visiting Algiers. This stunning building dates back to the Almoravid period and dates back to 1097. The building features various rooms, hallways and a huge minaret as well as a gallery were added to the mosque. This is one of the main sights in Algiers and should be on top of your itinerary.
Address: Boulevard Amilcar Cabral, Algiers