The Monastery of Geghard, a UNESCO World Heritage Site in Armenia, is renowned for its 13th-century rock-cut churches and tombs hewn directly into the mountainside, blending seamlessly with the natural landscape. Founded in the 4th century by Gregory the Illuminator, it takes its name from the holy spear believed to have pierced Christ, which was once preserved there. The complex features intricate khachkars, chapels, and tombs that exemplify medieval Armenian monastic architecture and spiritual heritage.