The churches in Helsinki are high on the must-see list. You should visit the Lutheran and Russian Orthodox Cathedrals. There's also the 1960s-built Rock Church, blasted from bedrock. And don't miss the impressive Senate Square. Other hits in the center of Helsinki include the classy Esplanade shopping streets and park. Then there's the Sibelius monument and the lively South Harbor market. Save time for a visit to Suomenlinna, a UNESCO-listed fortress archipelago, just a 15-minute ferry ride from Helsinki's South Harbor. Here you'll experience scenic tranquility that contrasts with the bustling city. Helsinki's direct flights to North America make it an ideal place to start or finish a tour of the Baltics.