Historical churches can be found in virtually every village and town in Slovakia. Most of them are built in the Baroque style, but there are also many examples of Romanesque and Gothic architecture, for example Banská Bystrica, Bardejov and Spišská Kapitula. The Basilica of St. James in Levoča with the tallest wood-carved altar in the world and the Church of the Holy Spirit in Žehra with medieval frescos are UNESCO World Heritage Sites. The St. Martin's Concathedral in Bratislava served as the coronation church for the Kingdom of Hungary. The oldest sacral buildings in Slovakia stem from the Great Moravian period in the 9th century.