the national observatory of athens city, greece at the top of the nymphs` hill in thission

acropolis areios areopagus athens attica attractions buildings city cityscape culture destination europe golden greece greek heritage hill historic historical history holidays hour houses icon landmark landscape mediterranean national nymphs observatory outdoors pagos panorama panoramic photo picturesque plaka scenery sightseeing summer sunset taken thisseio thisseion thissio thission top tourism touristic traditional travel urban vacation view visit