Checking fares from Rome to Istanbul, I'm surprised to find we can save about $40 with a 5-hour layover in Athens. I've seen winter closing hours of 1700 & 1530 for the Acropolis. Whichever, our 10 November layover from 1400 to 1900 would be too late to visit a site with winter closing hours. What about another quickie "I've done Athens" experience? Catch the Metro to? Sunset about 1715, so dark before 1800 (We'll need to be BACK to the airport by then).
Can we leave our checked luggage to be sent on to Istanbul & go through Customs with just our carry ons? Any issue with getting back through security?