One day layover--where?
I'm planning to go to Greece in September 2019 (departing from Des Moines). I don't think I'll be able to afford Business for First Class so I was thinking of trying to break up the trip with a 15-20 hour layover at a European location that would be relatively en route to ATH.
Is there anywhere that you would recommend for an interesting sight-seeing stop between DSM and ATH? Please keep in mind that this would just be a long day layover, not much time to go too far from the airport location. thanks