The ruins of the castle in Olsztyn near Częstochowa are among the best-known strongholds of the Polish Jura. The castle, situated on the top of a limestone hill, was constructed during the reign of king Casimir the Great (1333-1370) as a part of a defensive system for the trade routes from Kraków to the Greater Poland (Wielkopolska) region. It was built of white limestone and overbuilt with brown bricks. The castle witnessed many dramatic events, and from the mid-seventeenth century, it was falling into disrepair. Eventually, it became a tourist attraction, lying on the popular Eagles’ Nests Trail. You might also like other articles about most beautiful Polish castles and palaces (click) ABC Wednesday