What is the capital city of a famous city in Iraq that sits on the banks of the Tigris River?

A capital city and a famous city which sits on the banks of the Tigris River in Iraq is Baghdad. Baghdad is the second-largest city in the Arab world and was renown for quickly becoming a cultural, commercial and intellectual center for the Islamic world. The Tigris River flows through Iraq and southeastern Turkey and is one of the most famous rivers which defined Mesopotamia, as well as the Euphrates.