A short Metro ride from Washington DC, Alexandria, Virginia is the perfect escape from the fast-paced capital. First settled in 1695, the city retains its colonial spirit, with cobblestone streets and historic buildings in the Old Town, Gadsby's Tavern, a restaurant serving food since 1770, and centers of learning like the Black History Museum. For a more contemporary side of Alexandria, wander the streets of the stylish Del Ray neighborhood, where local artists operate boutiques and studios.

Sitting at the northernmost corner of Virginia in the Shenandoah Valley, Winchester offers visitors the chance to explore historical sites, museums, vineyards, farmers' markets, and tree-lined Old Town streets once wandered by the likes of George Washington and Stonewall Jackson. The fruitful fields of the surrounding Frederick County have earned the area the title "apple capital of the world," with the city hosting the Shenandoah Apple Blossom Festival annually for almost a century.

The Welsh capital may have begun its life as a Roman fort, but it's since become a bustling city. Where the fort once stood, Cardiff Castle has held court since the 11th century. It remains a central presence in the city, now full of lively art and music venues, hip boutiques, fun bars and modern hotels. Even with so many new and exciting things to see, the National History Museum is still the most visited attraction in Wales. Don't be the only visitor who plays hooky!

Amsterdam is truly a biker’s city, although pedaling along the labyrinthine streets can get a little chaotic. Stick to walking and you won’t be disappointed. The gentle canals make a perfect backdrop for exploring the Jordaan and Rembrandtplein square. Pop into the Red Light District if you must—if only so you can say you’ve been there. The Anne Frank House is one of the most moving experiences a traveller can have, and the Van Gogh Museum boasts a sensational collection of works.

The 1000-year-old Norwegian capital sits at the head of Oslo Fjord. This stunning setting gives hints of the wild wonders that lie just beyond the city. From taking in visual delights at Vigeland Sculpture Park, the Viking Ship Museum, the Munch Museum and Holmenkollen, to the challenging content within the new Nobel Peace Centre and the Holocaust Center, Oslo offers plenty of food for thought. The Oslo Pass allows free travel on public transport, free parking and many museum and sight admissions.

Copenhagen was once a Viking fishing settlement, and you can still find traces of the Norse explorers here. Visit reconstructed villages, the remains of a 1,000-year-old castle, and museums dedicated to the notorious raiders. Copenhagen also features a blend of modern architecture and historical artifacts such as the Round Tower observatory – a wonderful example of 17th-century architecture. Art galleries, narrow streets, canals, parks, and Baroque churches round out the city’s cultural attractions.

Potsdam was the residence of the Prussian kings and German Kaisers until 1918. It is the site of the parks and palaces of Sanssouci, the largest World Heritage Site in Germany. The city is now the capital of the German federal state of Brandenburg and a home to three public colleges and a major film production studio.

The capital city of Sweden combines modern attractions with historic charm. Kick off your stay with visits to Stockholm’s two UNESCO World Heritage Sites: the Royal Palace Drottningholm (the residence of the royal family) and the magical Skogskyrkogården, or Woodland Cemetery. Stroll the cobblestone streets of Old Town and over the picturesque bridges that span the city’s canals. The 19th-century Skansen was the world’s first open-air museum and is still a premier place to learn about Swedish history.