copenhagen, denmark. 17th-century rosenborg slot with royal treasures and gardens

building exterior copenhagen danish denmark europe kobenhavn oresund region rosenborg castle scandinavia viking zealand island architecture blue brick capital cities city cityscape culture day facade famous place garden grass history international landmark multi colored museum nordic countries old outdoors palace public park renaissance scandinavian sky spire statue summer tourism tourist tower town travel destinations vibrant color winter denmark 17th-century slot royal treasures gardens impressive collection beautiful