Recent Excavations
The site of Qasr-e shirin was searched for the first time in 1891 and again in 1910. Excavations in 2006 led to the discovery of a wall of forty miles long, built by Khosro Parviz to protect the city. This wall extends beyond the border with Iraq. A canal dug at the time of the Sassanids, ends in Iraq. The water of the river Hulwan (Alwand) entered the channel by a trench and then led the water to Iraq. This canal covered with stucco stone is considered one of the masterpieces of civil engineering in irrigation.
Read more about this topic: Qasr-e Shirin