Erebuni fortress town was built in 782 BC, by Argishti I, the king of Urartu Kingdom. The name of Yerevan is etymologically derived from the name of Erebuni, and the date of foundation of the modern capital is considered to be the date of construction of Erebuni fortress. The ruins of the fortress with the museum are located directly in the city, in the administrative district of Erebuni. The architectural plan of the fortress has a form of triangle, and is constructed from tuff, adobe, wood and basalt. Besides its main objective of protection, Erebuni fortress was the religious center of the Kingdom, encompassing inside its walls the holy temple dedicated to God Khaldi, the supreme god in the Urartian mythology. Up to this day, the front wall of the Erebuni castle-museum has the carved face of God Khaldi, inscripted high above the doors. The museum requires a ticket of a very affordable price, with the simple entry amounting to $2, and a guided tour – $5.
credit: Following Hadrian