Visiting Iraq is a journey into the cradle of human civilization. Roam Mesopotamia, the land between the rivers of Euphrates and Tigris, and tread in the footsteps of the world's earliest civilizations. Start in Baghdad, the present-day capital of Iraq, and explore ancient Babylon—home of Mesopotamian kings. Marvel at the Ziggurat of Ur, believed to be the birthplace of Abraham, and boat through the dreamy Tigris marshlands. Visit Uruk, the world's first city, and discover Najaf and Karbala, centers of the Shia faith.