Many people in the world may think wrong about Iranians society due to what they often watch/hear in the media. Iran is a different country in the Middle East in compare to Iraq, Afghanistan, Pakistan and some Arab countries.
All women in Iran have to wear the hijab in public. However, large numbers of Iranian women are in civil service and have higher education. Currently near seventy percent of Iran's science and engineering students are women. Women, make up 27% of the Iranian labor force and the percentage of all Iranian women who are economically active has more than doubled from 6.1% in 1986 to 13.7% in 2000. They have the right to vote, to drive, to work in state/private firms, to do bussiness, to study, and so many other rights as well as men.
To be honest, women in Iran have some limitations due to their hijab mostly; but they have some alternatives: there are several swimming pools, institutions, beaches, parks and other places, ONLY for women. Men are not allowed to enter those public places for women only.
I and Sara (the new author of Mashhad Daily Photos) will post more photos of women in Iran in next weeks.
Wikipedia.org is the reference of numbers in the text. For more information visit this page: Women in Iran.