Penteli Monastery is a historic monastery located on the slopes of Mount Penteli in Greece. Founded in the 16th century, it is dedicated to the Assumption of the Virgin Mary and is known for its beautiful architecture and serene surroundings. The monastery has played a significant role in the spiritual life of the region and has been a center for monastic activity. The monastery features a stunning collection of frescoes and icons, showcasing the artistic heritage of the Byzantine period. It also houses a library with valuable manuscripts and religious texts. Visitors can enjoy the peaceful atmosphere and scenic views of the surrounding landscape.