Iran is too safe. There is not important issues for traveling to different parts of Iran. You can travel all parts of Iran as a ecotourism or cultural tourism.
In spite of what media shows, Iran is safe where crime rate is lower than other neighboring countries. Like many other countries:
- Be careful in going out alone after 10 pm, especially If you're a woman.
- pick-pocketing does not happen too much, but please be careful in crowded places or in buses and subways.
- In some big cities like Tehran, motorbikes are used to move passengers. Highly recommended do not use them for transport.