Castel del Monte castle, Hohenstaufen Emperor Frederick II, 1240 - 50, UNESCO World Heritage Site, Barletta-Andria-Trani Province, Apulia, Italy, Europe

deserted no one no people nobody uninhabited empty blue blue daytime day daylight fortress fortresses fort castle fortification fortifications architecture architecture sky skies cloudless blue sky blue skies europe europe's octagon octagons octagonal tourist attraction tourist attractions place of interest famous place famous places sight landmark tourist landmark places of interest tourist spot unesco world heritage site unesco world heritage sites world heritage site unesco world heritage site world heritage unesco world site culture cultures southern europe south europe apulia puglia attraction attractions journey trip travel voyage voyages medieval mediaeval good weather nice weather fine weather weather is fine weather is nice travel photography castel del monte barletta andria trani province southern italy south of italy