Imposing and majestic, this monastery was founded by S. Rosendo in 936 and has been one of the most important monasteries of the Benedictine Order in Galicia, both from the material and artistic point of view, and is therefore declared a national monument since 1931. Since the secularization of the 19th century, its dependencies are occupied by different local and regional institutions. The elegant church stands out , work of the 17th century with Baroque and Renaissance elements that make it a great temple due to its ornamental profusion. Equally, its facade, joined to the monastery itself, which highlights its two cloisters, the old and the new, built between the 16th and 18th centuries. Located behind the apse of the church, we find one of the jewels of the Galician Mozarabic art, which is the small church of S. Miguel, work finished in 942 which was declared National Monument in 1923. The quality of its construction and the proportionality of its forms would justify by itself the visit to Celanova.