Greek Isles & Sicily Cruise 7 nätter • Athens (Piraeus), Greece till Barcelona, Spain • Mariner of the Seas

Explore the harbors of Piraeus, which showcase the Golden Age of Greek history. Visit the Hellenic Maritime Museum and the ship sheds — here, you can see how ancient ships were crafted. In the charming Castella district, you'll find some small, quaint shops and cafes amid the elegant neoclassical buildings. Head to Sotiros Street to find brand name stores, alongside smaller local shops.

Santorini is one of the world’s most popular islands, where adventure bubbles above the Aegean Sea in breathtaking ways. Take a cable car to see Fira’s old cathedrals and enthralling museums. Swim in deep blue waters that lap black pebbled beaches. And peel back layers of history in excavated Akrotiri— all while relishing the dramatic scenery of this Cyclades isle.

Powder white houses, sparkling blue waters, and red-hot nightlife— the Island of the Winds carries you away with colorful upscale adventures. Explore Hora’s bougainvillea-laced pathways and see the Folklore Museum’s Mykonian ship models. Join the raucous party on the shimmering sands of Super Paradise beach. Or watch the sunset from an open-air taverna— all nestled in the heart of Greece’s Cyclades islands.

Head straight to the ancient city of Ephesus, a 20-minute drive from the port. Plan your visit based on how much you want to walk and how many sites you want to check out. The House of the Virgin Mary and the Basilica of St. John hold historical import as well as the traditional brick and stone architecture of the ancient near east. And of course, you can see the one remaining column of the Temple of Artemis, one of the Seven Wonders of the Ancient World.

Sicily's capital city Palermo is a patchwork of influences from the Greeks, Romans, Arabs and Normans, all of whom have left their imprint here throughout the ages. Admire the diverse architecture of the Palazzo Reale, the historic seat of the kings of Sicily. Check out Piazza Vigliena, the 17th-century Baroque center square. Explore stunning mosaics at the Martorana. Or head to the top of Mount Pellegrino, where you can visit the enigmatic Shrine of St. Rosalia and take in vast views of the Golden Shell Valley.

Afternoons in Barcelona are best spent eating Spanish tapas in a cozy bar. Then take a Gaudí-inspired architecture crawl to see modernist wonders like Casa Milà, Casa Batlló, Park Güell and the awe-inspiring La Sagrada Família. Explore medieval dockyards at the Maritime Museum— or throw on an apron and learn the centuries-old art of Catalan cuisine in a chef-led cooking class.