New Delhi is a thoroughly inscrutable onion of a city: every layer you peel off reveals an even deeper layer of history. Rebuilt eight times by its many conquerors, it has been the seat of the Hindu, Muslim, and British empires. All of them have left their mark on the architecture, customs, food and people of this relentless city; all are undergoing a transformation in the capital of modern India.

Capital of the beautiful region of Sicily, Palermo is a fascinating hidden gem awaiting to be discovered. This busy port city pulsates with vibrant energy, embodying a perpetual transformation that has firmly reinstated it among Europe's cultural hubs. Palermo is full of sights and treasures: from ornate Baroque churches and glorious Norman-Gothic architecture to elegant Art Nouveau villas and lively markets. Amidst the chaotic streets, the city's flamboyant spirit thrives, offering a delightful surprise at every turn.

Saarbrücken, Germany's small jewel lying on the French border, is Saarland's charming and amicable capital that has some truly intriguing stories to tell: a plethora of Roman and Baroque landmarks, all scattered along the Saar river, speak of the region's eventful past.

Porto was once the last stop of adventurers on their way across the Atlantic to the New World. The cliché that Lisbon shows off and Porto just works is a well-worn metaphor that fails to do justice to the city's innumerate charms fully. History dwells around every corner, and more than ever, Porto is a place determined to hold on to its own distinct identity.