The Holy Monastery of Great Meteoron is the largest and oldest monastery of Meteora, standing majestically on the highest rock of the complex. Its impressive scale, rich history, and commanding views make it one of the most significant landmarks in the region.

The monastery was founded in the 14th century by Saint Athanasios the Meteorite, who established the first organized monastic community in Meteora. It was later expanded by his disciple Saint Ioasaph, a former Serbian nobleman, who contributed significantly to its development and wealth.

The main church (katholikon), dedicated to the Transfiguration of Christ, was built in the 14th century and later expanded in the 16th century. It is an exceptional example of Byzantine architecture, richly decorated with impressive frescoes that reflect the spiritual and artistic traditions of the time.

The monastery flourished during the 15th and 16th centuries, becoming the most important spiritual and economic center of Meteora. It housed valuable manuscripts, religious relics, and treasures, many of which are preserved today.

Visitors can explore several interior spaces, including a museum displaying ecclesiastical artifacts, manuscripts, and historical items, as well as former monastic areas such as the refectory, kitchen, and storage rooms, offering a vivid insight into monastic life.

Access to the monastery requires climbing a long and well-constructed staircase, making it one of the more physically demanding visits in Meteora, though the path is safe and clearly organized.

Its monumental architecture, historical importance, and panoramic views over the Meteora landscape make the Great Meteoron Monastery an essential destination for any visitor to the area.