We visited Bel Bachir near El Golea. It was amazing to see this church in the middle of nowhere. This church is the place where Charles de Foucauld, responsible for the hermitage in the Hoggar mountains in the south, is buried.
El Golea is dominated by the old ksar El Menia, built in the 10th century by the Berbers. The ksar is in a bad state. It's nice to climb the ksar. From here you have beautifull views to the north and the south. Because of the high temperatures the best time to climb is early in the morning.
I heard that meanwhile the ksar is renovated.