The Fortress of Oradea is one of the most interesting and valuable Italian-type fortifications in Romania. It was built by Italian architects in the 16th–17th centuries, and destroyed by the Turks in 1660. The fortress is very similar to those built by the famous French architect Vauban in Western Europe in the same period. It is well fortified with towers, a moat and escarpments. In the enclosed area within the walls there is a pentagonal castle with a second fortification.