Masjid Agung lies on the western side of the north square. It is a place for praying and place for holding religious ceremonies as well Religious ceremonies like Sekaten and Garebeg are held every year to celebrate the Islamic holidays. The mosque provide the Kraton for religious activities. This Mosque is designed with traditional architecture. The style has a special roof called "Tajug", such a roof that is especially used for religious buildings. This traditional mosque becomes the most interesting part of the building because of the architecture.