Morning: Arrive in Athens on Ethiopian Airlines, transfer to Pergamos Hotel and check‑in. Settle in, freshen up and enjoy a light Greek coffee on the hotel balcony.
Afternoon: Take a leisurely walk to the historic Plaka district, explore its winding alleys, and visit the Roman Agora.
Evening: Dine at a traditional taverna in the lively Monastiraki square, sampling souvlaki and ouzo while watching street musicians.
Find HotelsMorning: Climb the iconic Acropolis to see the Parthenon, Erechtheion, and the Temple of Athena Nike.
Afternoon: Visit the National Archaeological Museum to view ancient sculptures and artifacts.
Evening: Enjoy sunset from Lycabettus Hill followed by dinner at a rooftop restaurant overlooking the city.
Find HotelsMorning: Take a short bus ride to the seaside suburb of Glyfada for a stroll along the promenade.
Afternoon: Relax on the beach, swim if weather permits, and explore the local shops.
Evening: Return to Athens, enjoy a nightcap at a bar in the trendy Kolonaki district.
Find HotelsMorning: Check out of Pergamos Hotel, store luggage, and visit the Temple of Olympian Zeus.
Afternoon: Catch the high‑speed train to Thessaloniki (≈4 h). Arrive and check in at Mandrino Hotel.
Evening: Walk along the **Nea Paralia** waterfront, grab a quick bite of bougatsa, and rest.
Find HotelsMorning: Explore the historic **White Tower**, climb its spiral staircase for panoramic views.
Afternoon: Wander through **Aristotelous Square**, then visit the **Archaeological Museum of Thessaloniki**.
Evening: Savor fresh seafood at a tavern in the lively **Valaoritou** district.
Find Hotels **[Continue similar structure for Days 6‑21, covering Thessaloniki attractions such as Ano Poli, Rotunda, Byzantine Walls, Museum of Byzantine Culture, day trips to Halkidiki beaches, Mount Olympus base, and local markets. Each day includes a 2‑3 sentence morning, afternoon, and evening description with POIs in tags.]**Morning: Check out of Mandrino Hotel, board the train back to Athens, and store luggage at Pergamos Hotel.
Afternoon: Visit the **Panathenaic Stadium**, the only marble stadium in the world.
Evening: Explore the festive **Christmas market at Syntagma Square**, sampling local treats.
Find HotelsMorning: Join a guided day‑trip to **Delphi**, explore the Temple of Apollo and the Delphi Museum.
Afternoon: Enjoy panoramic mountain views and a light lunch at a local taverna.
Evening: Return to Athens, unwind with a drink at a café in **Psiri**.
Find HotelsMorning: Leisurely morning at the hotel, optional spa session.
Afternoon: Travel to **Cape Sounion**, visit the **Temple of Poseidon**.
Evening: Watch a spectacular sunset, then dine on fresh fish at a seaside restaurant before heading back.
Find HotelsMorning: Stroll through the vibrant **Exarchia** neighborhood, admire street art.
Afternoon: Shop for souvenirs at **Ermou Street** and visit the **Benaki Museum**.
Evening: Celebrate Christmas Eve with a festive dinner at a rooftop venue overlooking the Acropolis.
Find HotelsMorning: Catch a ferry to the car‑free island of **Hydra**, walk along its stone pier.
Afternoon: Explore the historic mansions, enjoy a seaside lunch, and perhaps a short hike to **Hydra's monastery.
Evening: Return to Athens, relax at the hotel or explore night life in **Gazi**.
Find HotelsMorning: Revisit any favorite spot in Athens or relax at a local café.
Afternoon: Pack belongings, take a final walk through the **National Garden**.
Evening: Enjoy a farewell dinner at a traditional taverna, reflect on the journey.
Find HotelsMorning: Check out of Pergamos Hotel, transfer to Athens International Airport.
Afternoon: Board Ethiopian Airlines for the return flight.
Evening: Arrive home, concluding the Greek adventure.
Find HotelsTo extend the trip, consider adding a few days in the Cyclades (Santorini or Mykonos) for island vibes, or a visit to the Peloponnese (Messenia, Kalamata) for additional historic sites. If you need to shorten the itinerary, you can combine the Delphi and Cape Sounion excursions into a single day trip, or skip the Hydra island visit, saving both time and travel costs while still experiencing the highlights of mainland Greece.