aerial view of ptuj castle with red roof gothic renaissance palace building, bastions, drava river in slovenia

ancient architecture balkan baroque beautiful belltower blue building castle cathedral city cityscape drava river europe fortification fortress gothic heritage historic history landmark landscape medieval old outdoor panorama ptuj town reflection roof scenic sky slovenia slovenian slovenija styria summer tourism tower travel urban view water waterfront yugoslavia round cannon gun loopholes red eighth-largest located traditional region northeastern seat municipality oldest recorded aerial renaissance palace bastions towers hilltop