athens, greece. the old telescope of the national observatory of athens in pnyx area on top of the nymphs` hill in thiseio. view f

acropolis architecture athens attica attractions building city cityscape culture day destination dome europe famous filopappou greece greek heritage hill historic historical history holidays icon landmark landscape national nature nymphs observatory old outdoors panoramic picturesque plaka scenery scenic sightseeing summer telescope thiseio thisseion thissio tourism touristic travel urban vacation view visit