Of Herat: The Friday Mosque

Perhaps the most famous sight in Herat is the Friday Mosque. It's got a lot in common with the famous old mosques in Uzbekistan, which is reasonably close, but more importantly was tied by the Silk Road to Herat, helping architectural styles spread. More important than any of that is that Herat is safe enough that you can get out of a car and go look at the mosque and take pictures.