World Heritage Sites: Algeria (with Pictures)

Given the picture, name the UNESCO World Heritage Site. Each row contains up to 4 pictures of the same site. How hard could it be? All images are sourced from whc.unesco.org and Wikipedia under a Creative Commons license. © UNESCO, CRA-terre, Gruban, Mohammed Beddiaf, Michel-georges bernard, R hakka, Alioueche Mokhtar, Yves Jalabert, Yelles, Addounya, Cmille Gillet, Stefan Krasowski, Dan Slogan, Hamza-Sia.