Iran has banned men and women from using educational facilities at the same time.

In line with its policy of introducing gender-segregation to every social environment, the Iranian government has banned men and women from using educational facilities at the same time. Men will be permitted access on some days and women on others. The directive applies in particular to libraries and research institutes.

Read more here: http://bulletinoftheoppressionofwomen.com/2013/02/16/gender-segregation-in-iranian-educational-facilities/