Erebuni Museum was established in 1968. The Museum stands at the foot of the Arin Berd hill, on top of which the Urartian Fortress Erebouni has stood since 782 BCE. The City-Fortress was excavated, some parts of the structure were reinforced and restored, and the fortress was turned into an outdoor Museum. A cuneiform inscription testifies that the city was built by Argishti I the King of Urartu in 782 BCE. The temple of God Khaldi occupied an important place in the fortress. The walls of the temple were decorated with numerous frescos.