Dunajec river castles
The Dunajec river castles is a chain of thirteen medieval castles (some of which do not exist any longer), built in southern Lesser Poland, along the Dunajec river. The castles protected the border between the Kingdom of Poland and the Kingdom of Hungary, as well as a very important international trade route, which went along the Dunajec and the Poprad all the way down to the Danube river.