Impressive architecture and hip restaurants meet a sunny Spanish climate and beautiful beaches. This has transformed Barcelona, in just a few decades, from a rough port city into one of Europe's, if not the world's, premier destinations. Stroll along La Rambla and Passeig de Gràcia, admire Gaudí's masterpieces, lose yourself in the Gothic Quarter, bask in the sun at Barceloneta beach, and discover some of the city's vibrant late-night haunts while you're at it.

"The city in its setting and entire surroundings may be said to have something ideal." (Johann Wolfgang von Goethe, 1797). Scarcely any other European city has had its praises so often sung as Heidelberg. The mysterious Heidelberg Castle, the picturesque Old Town, and as Goethe himself stated, the perfection of its setting – in the nineteenth century, all of this attracted the German romanticists, who immortalized Heidelberg in poetry, music, and art. Today the charm of Old Heidelberg is combined with a future-oriented and international focus.

Set on the banks of the River Foyle in Northern Ireland, Derry (officially Londonderry) is one of Europe's best-preserved walled cities. The Bogside murals and Free Derry Corner stand as records of The Troubles, and the "Hands Across the Divide" monument marks the city's hard-won steps towards peace. Named UK City of Culture in 2013, Derry has earned a reputation for great food, live music and a thriving arts scene. The rugged Causeway Coast, a UNESCO-listed stretch of dramatic basalt columns, is just a short drive away.

Mykonos is an eclectic place–pristine beaches, elegant boutiques, fine dining, and rowdy bars are all packed onto one tiny piece of land, a mere 15km long at its widest point. Partying is a round-the-clock affair here, against a scenic backdrop of whitewashed houses and Little Venice, Mykonos Town's most charming neighbourhood.

Visitors to Reykjavík are thrilled by the pure energy at the heart of Iceland’s capital city: be it from the boiling thermal springs, the natural green energy, or the lively cultural scene and fun-filled nightlife. The world’s northernmost capital is framed by the majestic Mount Esja, which keeps a watchful eye on the city, and the blue waters of Faxaflói Bay. On a sunny day, the mystical Snæfellsjökull glacier appears crystal-like on the western horizon, while mountainous moonscapes spread to the southeast.