Oleśnica

Established in medieval Poland, Oleśnica was the capital of a small eponymous principality from 1313 to 1884. It was a notable center of Polish printing in the early modern period. The town is famed for its large 16th-century ducal castle. The castle's inner courtyard arcades, a masterpiece of Renaissance architecture, are iconic in the region. The town also contains architecture in other styles, including Gothic, Baroque, Neoclassical and Renaissance Revival, and is home of the only surviving chained library in Central Europe. It is located on the Route of the Heroes of the Battle of Warsaw 1920, the main highway connecting Wrocław with Łódź, Warsaw and Białystok.