We will be having a long layover at the Athens Int'l airport during our flight from Paris to Santorini. We will be arriving at 11:30PM on a Saturday and will be departing the next day Sunday at around 4PM. My fiance and I are planning to do a short day tour of Athens during this stop. Is it better to book a hotel near the airport or in Akropolis? Is it safe to ride public transportation/taxi going to Akropolis that late (1130PM)?