Come fly with Austrian Airlines to Arbil and visit the fourth largest city in Iraq. Arbil, a city of many names, is also known as Irbil, Arbela and Hewler. No matter the name you choose, Arbil can be dated back to the 23rd century B.C. A major landmark of the city is the historical center of the city, the Citadel of Arbil. The Citadel is located on an "occupied mound" of approximately 1.1 million square feet. The oldest continuously inhabited city in the world, the Citadel has been undergoing restoration since 2007. Located in front of the Citadel, Hewler Park can not be missed because it runs the expanse of the mound. With Arbil's history, it is not surprising that, at one time, Arbil was the heart of Christianity in the Middle East. Knowing this, you may be lead to the Chaldean Catholic Church and many more adventures.