The Numidians were Berbs living in todays Algeria, part of Tunisia and part of Libya. They ruled before the Romans and when the Roman empire collapsed. Africa until the Islamization. They have left some huge mausoleums, and we saw two, one close to the capital Alger, and the other not far from Constantine.
The mausoleums were huge and I wonder how many tons of rocks the workers had to transport and lift. The one we actually visited was restored but was in rough shape. We could not go inside so we just went around it.