The Book of Kells is an illuminated manuscript from the 9th century containing the four Gospels of the New Testament. While its original purpose was religious, it is considered a masterpiece of Celtic art. Experts believe it was first created at the monastery of Iona before being moved to Kells for protection from Viking raids. It remained at Kells monastery until the 16th century when it was given to Trinity College Dublin where it remains today. The extraordinary artwork and intricate illuminations found throughout are estimated to have taken 30 years to complete by hand.