Romanian architecture is diverse, including medieval architecture, modern era architecture, interwar architecture, communist architecture, and contemporary 21st century architecture. In Romania, there are also regional differences with regard to architectural styles.
During the middle ages in Romania there were two types of construction that developed in parallel and different in point of both materials and technique. The first is the popular architecture, whose most spectacular achievements were the wooden churches, especially those in the villages of Maramureş, Banat and Apuseni Mountains, where the tradition is still carried out today. In Maramureş, in Surdeşti village, the 54 m high church tower built during 1721–1724 is among the highest of this kind in Europe. The second consists mainly of monasteries, as well as princely seats or boyar mansions. Unfortunatelly, most of the old lay edifices were destroyed by time, wars, earthquakes and fires.
In mediaeval architecture, influences of Western trends can be traced, to a greater or lesser extent, in all the three lands inhabited by Romanians. Such influences are stronger in Transylvania, and weaker in Moldavia, in forms absorbed by local and Byzantine tradition. In Wallachia, Western elements in architecture were even fewer; there, from the 14th-century architecture was based on the local adaptation of the Byzantine model (the Princely Church in Curtea de Arges and the Cozia Monastery).
There are monuments significant for the Transylvanian Gothic style preserved to this day, in spite of all alterations, such as the Black Church in Braşov (14th and 15th centuries) and a number of other cathedrals, as well as the Bran Castle in Braşov County (14th century), the Hunyad Castle in Hunedoara (15th century).