Finland’s oldest city, Turku combines a medieval heart with a modern sensibility. Overlooking the Aura River, majestic Turku Castle is an excellent place to begin your exploration by meandering the labyrinthine halls of this well-preserved fortress dating to the 13th century. Turku Cathedral provides an equally fascinating glimpse into history, and this Gothic landmark is considered one of Finland's most important buildings.

One of the world’s great cities, London seamlessly blends history and modernity in its iconic landmarks and rich culture. After watching the Changing of the Guard at Buckingham Palace, walk through the historic streets of Westminster to see the majestic Houses of Parliament and Big Ben, and then get a view of it all from high over the Thames on Europe’s tallest Ferris wheel, the London Eye. UNESCO World Heritage sites abound, from Westminster Abbey and the Tower of London to the Royal Observatory of Greenwich.