Zvartnots Cathedral is a 7th-century Armenian church located near Yerevan, the capital of Armenia. It was built between 643 and 652 AD and is known for its unique circular design and impressive architectural features. The cathedral was dedicated to St. Gregory the Illuminator, the patron saint of Armenia, and served as a significant religious center during its time. The ruins of Zvartnots are recognized as a UNESCO World Heritage Site, highlighting their historical and cultural importance. The cathedral's innovative design influenced later Armenian architecture and remains a symbol of the country's rich heritage.