Wawel Hill Castle and Cathedral, Vistula River with swans, UNESCO World Heritage Site, Krakow, Poland, Europe

horizontal color image travel destinations travel outdoors sunset dusk krakow poland europe clear sky sky building architecture wawel castle castle fortress built structure wawel cathedral cathedral religion christianity place of worship large group of animals animal swan cygnus water bird white standing sitting vistula river river water reflection tree light beam illuminated street light romanesque gothic renaissance baroque no people past history unesco unesco world heritage site trees travel destination tourist destination tourist destinations sundown evening twilight rivers flowing water outdoor outside cathedrals spirituality church churches places of worship castles fort forts fortified fortification historic historical