Most noticeable alterations to the designs are visible with the drum dome structures, commonly altered into ether the original or revival Serbo-Byzantine styles. Hilandar Monastery at Mount Athos originally had a church built by Stefan Nemanja in the Raška style, which would later by replaced by King Uroš II Milutin with the Vardar styled Church of Entrance of the Theotokos. Vardar Style Vardar architectural school, also known as Serbo-Byzantine Style is an ecclesiastical architectural style that flourished in the Serbian Late Middle Ages, which was developed through fusing contemporary Byzantine architecture (under the influence of the Palaiologos Renaissance) with Raskan influences to form a new style. By the end of 13th and in the first half of 14th century the Serbian state enlarged over Macedonia, Epirus and Thessaly up to the Aegean Sea. On these new territories Serbian art was even more influenced by the Byzantine art tradition. Most notable Vardar styled churches and monasteries are due to King Stefan Uroš II Milutin, and his wide contribution in ecclesiastic constructions during his reign. The basic characteristic of this style is the basis in the form of a inscribed cross with one or five domes, while on the west side there is usually a narthex. The external design of church buildings is done in a Byzantine style, which is manifested by the use of grey or yellowish stones and red bricks which are usually arranged so that they create decorative patterns on the facade. Unlike the Raška style and the original fresco painting that accompanied it, the buildings of the Vardar style were decorated with frescoes that were modeled after the Byzantine ones of the period. Gračanica, which was entirely rebuilt by King Milutin in 1321, is the most beautiful monument of Serbian architecture from the 14th century. The church of this monastery is an example of a construction that achieved the highest degree of architecture not only in the Byzantine form but in the creation of an original and freestyle exceeding its models. The wall creation in steps is one of the basic characteristics of this temple. The Kings's Church in Studenica, characterized as an ideal church, was built in the first decades of the 14th century. By the end of the third decade of the 14th century the Patriarchate of Peć had finally been shaped. The exterior of the Patriarchate is a vision of shapes characteristic of contemporary Serbian