Karbala
Shrine of Remembrance
sacred site — dress code
Portrait
Husayn, the Prophet's grandson, was killed with his companions at Karbala in 680 in the event that defined the Shia–Sunni division, and his shrine stands beside that of his half-brother Abbas. The Arbaeen pilgrimage forty days after Ashura draws crowds estimated in the tens of millions walking from Najaf and beyond — by most counts the largest annual gathering of people on earth.
Restricted by faith Shrine access is restricted; the city itself is open.