Helsinki keeps a big secret--and travelers are only now beginning to realize just how much the city has to offer. With a strategic archipelago location, surrounded by the Baltic Sea, the city's cool urban lifestyle mixes seamlessly with its prominent Russian history. Mooch around the numerous museums and galleries, enjoy a classical opera, or join the in-crowd on a tour of the most stylish restaurants, bars, and clubs. Or, for the more adventurous, why not try an invigorating burst of ice-swimming or cross-country skiing? And no matter what time of year it is, no trip would be complete without indulging in the true Finnish passion, a traditional sauna.