Piraeus (Athens)

Named after Athena, the goddess of wisdom, Athens is one of the oldest cities in the world -- built around its namesake deity's temple, the Parthenon, which still stands today. But Athens feels far from an ancient city. While it has done an excellent job at preserving sites like the Acropolis (where the Parthenon is located) and Greek Orthodox churches, it has evolved into a hip and modern metropolis and homeport for ships sailing the Greek Islands. The city's recently overhauled Metro system also provides a cheap, safe and easy way to get around for sightseeing if you have extra time before or after your cruise. Aside from major landmarks, even once-dingy neighbourhoods like Plaka and Thissio have been restored, boasting fresh pastel-coloured painted facades and chic restaurants, bars and shops. Syntagma Square -- Athens' central square -- also has been reborn as a tree-filled haven from which to take in the city's gorgeous neoclassical Parliament building and catch the changing of the guard at the Tomb of the Unknown Soldier. (Yes, that means you get to watch those men in frilly skirts, elaborate waistcoats and bobbled shoes do their high-kicking thing.) Athens, once (in some parts, still) one of the most frenetic and traffic-polluted cities in the world, now owns a real buzz and is well worth spending a few days in if your cruise starts or ends there.