The Mother Cathedral of Holy Etchmiadzin is the oldest cathedral in Armenia, built in the early 4th century. It serves as the spiritual center of the Armenian Apostolic Church and is located in the city of Vagharshapat. The cathedral is a UNESCO World Heritage Site, recognized for its historical and architectural significance. The cathedral features a simple yet elegant design, with a central dome and a series of chapels. It has undergone several renovations over the centuries, preserving its original structure while enhancing its beauty. The Mother Cathedral remains a vital place of worship and pilgrimage for Armenians worldwide.