Are people who are not muslims allowed to go to a mosque? What should I wear if it is acceptable to attend one. Are there special rules and things you must do or should know before going? I would really like to attend one, I think it would help me come to a better understanding of Islam. Also, is it true that you are not supposed to befriend non-believers if you are muslim? In Islam is it a belief that all non-belivers are put to eternal damnation or are there exceptions (such as people who never had the opportunity to learn Islam)?