[call to prayer] >> anthony: but centuries of strict social and religious values keep some things solidly the same. alcohol, for instance, is strictly forbidden. men and women follow hierarchal roles as before. since the revolution, there's a tug-of-war over what is acceptable. [singing] >> anthony: outside a mosque in the medina, men fill the narrow street to celebrate muhammad's birthday. [singing] ♪ >> anthony: snacks are passed around. [singing] >> anthony: women watch and record from the rooftops. [singing]