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http://en.wikipedia.org/wiki/Saudi_Arabia

"Saudi Arabian culture mainly revolves around the religion of Islam.
Islam's two holiest sites, Mecca and Medina, are located in the
country. Five times every day, Muslims are called to prayer from the
minarets of mosques which are scattered around the country. The
weekend consists of Thursday and Friday. The public practice of any
religion other than Islam, including Christianity and Judaism, the
presence of churches, and possession of non-Islamic religious
materials is not allowed except in Aramco coumpounds in which many
expatriates attend church services.

One of Saudi Arabia's most compelling folk rituals is the Al Ardha,
the country's national dance. This sword dance is based on ancient
Bedouin traditions: drummers beat out a rhythm and a poet chants
verses while sword-carrying men dance shoulder to shoulder. Al-sihba
folk music, from the Hijaz, has its origins in al-Andalus. In Mecca,
Medina and Jeddah, dance and song incorporate the sound of the mizmar,
an oboe-like woodwind instrument. The drum is also an important
instrument according to traditional and tribal customs.

Saudi Arabian dress follows strictly the principles of hijab (the
Islamic principle of modesty, especially in dress) The predominantly
loose and flowing but covering garments reflect the country's large...