View of Propylaea entrance gateway from Acropolis, Athens, Greece against blue sky

acropolis altertum ancient cities ancient city ancient civilizations ancient civilization ancient greece ancient greek civilization ancient times ancient world antiquity archaeological area archaeological sites archaeological site archaeological archaeologic archaeology archeological archeologic archeology athens attractions attraction balkan peninsula balkans balkan blue skies blue sky buildings building capital city capitals capital cities city construction deserted empty entrance gates entrance gate entrances entrance entry gate entry europe's europe excavation field excavation sites excavation site excavations excavation famous place fine weather gates gateway gate gazes good weather greece greek heritages heritage historical historic international landmark landmarks landmark look at looking out looks into looks look municipal nice weather nobody no one no people observe old place of interest propylaea religious building ruined building ruined town ruins complex ruin site ruins ruin sacral building sacred building sight southeastern europe southeast europe southern europe south europe structure temple ruins temple ruin temples temple tourist attractions tourist attraction tourist landmark town travel photography uninhabited urban environment urban view over view watching weather is fine weather is nice