Although Moroccan Berber architecture is not strictly separate from the rest of Moroccan architecture, many structures and architectural styles are distinctively associated with traditionally Berber or Berber-dominated regions of Morocco 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, of which one of the most famous is Ait Benhaddou. They are typically made of rammed earth and decorated with local geometric motifs. 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.