Introduction to Zvartnots Church: is an ancient Armenian church in the early Middle Ages, also known as the Church of Eternal Efficacy. It is located near Etchmiadzin. It was built between 641 and 661 AD. The only remaining ruins are now. Originally a circular three-story domed building, the interior is a four-petal church with a cloister. The front is decorated with false arches, sculptures and reliefs, and the interior is decorated with mosaics and murals. The entire church was built with colored tuff, and was later rebuilt by Te Toramanyan based on the excavations and his personal vision. It became a church with a three-story dome, a cross-shaped interior, and connected corridors. Now there is another museum built next to the church, and some fragments of the ruins are displayed here.