Belgrade's long and storied history is suggested by its architecture, which varies from Byzantine and Ottoman to neoclassic and romantic buildings in the older neighborhoods, and from Art Nouveau to brutalism and neo-Byzantine design in New Belgrade. The city's many theaters, museums, monuments and opera houses boast a deep and fissured cultural life while the beaches and rivers attract sunbathers, sports enthusiasts and partygoers on the popular floating river barges that serve as nightclubs.

Jutland's cultural heart, Århus is an exuberant university town with a perfectly preserved old town and a recreated historic village, Den Gamle By. The top draw is the Moesgard Museum of Prehistory, showcasing exhibits from the Stone Age to Viking days and home to the city's most famous citizen, the 2000-year-old Grauballe Man. It's a lively spot, teeming with cafes, restaurants, clubs and cinemas. Denmark's second-largest city perches on Jutland's eastern coast amid beaches and woodland.

From Shoreditch’s swaggering style to Camden’s punky vibe and chic Portobello Road, London is many worlds in one. The city’s energy means that no two days are the same. Explore royal or historic sites, tick off landmarks from your bucket list, eat and drink in exclusive Michelin-starred restaurants, enjoy a pint in a traditional pub, or get lost down winding cobbled streets and see what you stumble across – when it comes to London, the possibilities are endless.