olsztyn, poland 2017. 11. 30. gothic castle of the prince-bishopric of warmia, ordensburg castle

2017 architecture attic attraction beautiful bishop blue brick building castle cloud courtyard defense defensive destination europe flank fortification fortified fortress gothic grass green heritage historic historical knight landmark mazury medieval middle monument old olsztyn ordensburg poland polish princebishopric protection ramparts red sky stronghold summer teutonic tourism tourist tower travel wall warmia well yard