Different views were expressed concerning Ali Ibn Abi Talib's burial site, as it was kept a secret during Umayyad Caliphate. While some historians argue that Ali Ibn Abi Talib's grave is not in Najaf, others argue that the grave that is in Imam Ali Holy Shrine in Najaf, belongs to prophets Adam or Noah. Despite all that, for more than 200 million Shi'ites, Najaf is among the holiest of places. With its golden dome, twin minarets, and the desings in colors blue, green, and gold; it is a magnificent and must-see architectural monument.
Najaf, while under Ottoman rule, became a center for Shi'ite belief and Islamic teachings; so much that the city is known as the City of Knowledge due to the higher education opportunities it presents, especially in religion.
The Great Mosque of Kufa, where the fourth caliph of Islam Ali ibn abi Talib was murdered while in Sujood, is located 10 km northeast of Najaf. The construction of the monument, which is one of the oldest mosques of Islam, dates back as far as the 7th century. It was adorned with gold, silver, emerald, and many more precious stones. The Great Mosque of Kufa with five gates and four minarets has survived to our day as a mesmerizing monument of cultural heritage. Today, it is located on an approximately 11 km square area which is busy and crowded by visitors almost all year round.
The area where Hussein ibn Ali -the grandson Islamic prophet Muhammad, and the son of caliph Ali ibn abi Talib- was murdered along with his family and the Battle of Karbala took place can be seen just north of Najaf. For Shi'ite Muslims, the city of Karbala is as much of a holy place as Mecca,