It is bordered by Iraq to the west, Turkey, Azerbaijan's Naxcivan enclave, Armenia, and Azerbaijan to the northwest, Turkmenistan to the northeast, Afghanistan and Pakistan to the southeast.
And a 37 year-old coffee shop owner in Mashad going by the name of Sam saw the fatwa as a diversion.
"So now instead of having a population of people asking, 'Where's my freedom? ' you have people asking 'how can I meet a girl online without breaking the law? CNN reported last summer that the government is trying to steer people to use a high-speed government-controlled intranet that opponents have dubbed "halal" or permissible under Islamic religious law.
Iran Sex Guide advises where to find sex, working girls, prostitution, street hookers, brothels, red-light districts, sex shops, prostitutes, erotic massage parlors, strip clubs and escorts in Iran, Asia.
Iran is a large country in the Middle East, between the Gulf of Oman, the Persian Gulf, and the Caspian Sea.
In 1979, revolutionaries launched a crackdown on brothels and tore them down.
Now risking the death penalty, Iranian prostitutes began to work more discretely on the street.
Over time, they developed new ways to solicit clients.
Internet chatting between unrelated men and women is against Islam and forbidden, ruled Iran's Ayatollah Ali Khamenei in a fatwa, according to Al Arabiya, a Saudi newspaper which monitors the Iranian media.
Nevertheless, a minority of young people in urban areas discreetly live their not much different than their Western counterparts.
Those who flaunt their independence by dressing "immodestly" can face the wrath of Guidance Patrols, or religious police. Khamenei, who is referred to as the "Supreme Leader," has his own website.
President Hassan Rouhani's staff maintains Facebook and Twitter accounts for him. Several young people contacted by Fox News said they viewed the chat fatwa as part of a pattern to keep people from communicating directly rather than primarily a religious ruling to preserve modesty.