As busy as you're likely to have been packing, planning your trip, checking luggage and that lot, why not ease into your vacation with a laid-back morning tour of Athens, which highlights modern marvels with the wonders of the ancients. From there, on to Athens' crown jewel, the towering Acropolis. Alternatively, walking and/or biking are great ways to see the city, and a private walking tour with the option to be a bit more photographic is always a nice introduction to the city.
Cradled by Mount Parnassus, the modern, buslting town of Delphi is a UNESCO World Heritage site and original resting place of the Delphic oracle - the most important oracle in ancient Greece and a major site for the worship of Apollo. Explore the Temple of Apollo and other famous sites on a day trip from Athens, or venture further on a multi-day Delphi tour. Complement your experience of classical Greece with a half-day visit to Cape Sounion.