In this context, the Berber architecture of the region is also integrated into, rather than separate from, the rest of Moroccan and Moorish architecture. Far from being isolated from other historical artistic currents around them, the Berbers of Morocco (and across North Africa) adapted the forms and ideas of Islamic architecture to their own conditions and in turn contributed to the formation of Western Islamic art, particularly during their political domination of the region over the centuries of Almoravid, Almohad, and Marinid rule. Nonetheless, many structures and styles are distinctively associated with areas that were traditionally Berber or that maintain strong Berber populations, such as the Atlas Mountains and the Sahara and pre-Sahara regions. These mostly rural regions are marked by numerous kasbahs (fortresses) and "ksour" (fortified villages) shaped by local geography and social structures, as with the example of the famous Ait Benhaddou. They are typically made of rammed earth and decorated with local geometric motifs.