San Francisco

Zagreb is made for strolling. Wander through the Upper Town's red-roof and cobblestone glory, peppered with church spires. Crane your neck to see the domes and ornate upper-floor frippery of the Lower Town's mash-up of secessionist, neo-baroque and art deco buildings.

Outspoken, adventurous, proud and audacious: Belgrade is by no means a 'pretty' capital, but its gritty exuberance makes it one of the most happening cities in Europe. While it hurtles towards a brighter future, its chaotic past unfolds before your eyes.

Barcelona is an enchanting seaside city with boundless culture, fabled architecture and a world-class drinking and dining scene. Towering temple columns, ancient city walls and subterranean stone corridors provide a window into Roman-era Barcino.

Berlin's combo of glamour and grit is bound to mesmerise all those keen to explore its vibrant culture, cutting-edge architecture, fabulous food, intense parties and tangible history. Bismarck and Marx, Einstein and Hitler, JFK and Bowie, they’ve all shaped – and been shaped by – Berlin.