Due to the unfair propaganda at media, you may know Iran as a dangerous country and may be at your black list to visit. Well, that's most people's concern with Iran. To be honest, in the reality world, there is another story. Iran represents the safest country in the Middle East and you can travel within this vast country with ease mostly at the center af Iran. However some areas of the country, particularly close to border areas with Afghanistan and Iraq, the Baluchistan province are seen as areas of higher risk by Western government and are generally not recommended as a travelling destination.
Of course, crime does still exist, so it pays to take the usual precautions, though in fairness we’ve heard of very few travelers being robbed. Things can happen, like any other countries but as far as petty crime there is some. Generally violent crime is super low in Iran in compare to other countries.