Embark your ship and settle into your stateroom. Buenos Aires, Argentina’s cosmopolitan capital, is an eclectic combination of Latin and European influences. The tree-lined streets and postcolonial architecture draw on the city’s Spanish, French and Italian heritage, while the many cafés and bodegas and vibrant nightlife are decidedly Argentine. Its barrios, or neighborhoods, exude an intimate atmosphere that belies the city’s size. Full of bohemian flair, historic San Telmo’s cobblestone streets and Belle Époque–style buildings reverberate with the mesmerizing melodies of the tango.