The architecture of Slovakia has a long, rich and diverse history. Besides Roman ruins (as in the military camp of Gerulata), Slovakia hosts several Romanesque and Gothic castles and churches, most notably Spiš Castle, which were built at the time of the Kingdom of Hungary. Renaissance architecture was of particular relevance in town hall squares, such as in Bardejov and Levoča. Affluent architecture in the following centuries made use of Baroque, Rococo and historicist styles (neo-classical, neo-Renaissance and neo-Gothic), while vernacular architecture in the countryside developed a specific style of wooden houses and wooden churches. In the 20th century, Slovakia knew Art Nouveau and modernist architecture, including , and finally contemporary architecture.