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.

Cluj-Napoca, often referred to as the unofficial capital of Transylvania, is a vibrant and lively city with a rich cultural history. Despite its ominous administrative status, the city is far from grim and has a well-deserved reputation as a party town. Named the European Youth Capital in 2015, Cluj-Napoca is home to an estimated 100,000 students, who make up about a fifth of the population. This youthful energy, combined with the city's cultural renaissance, makes Cluj-Napoca a must-visit destination for anyone interested in experiencing the vibrant arts and entertainment scene.

Valladolid breathes history. This is the place where King Felipe II was born, the Catholic Monarchs Ferdinand and Isabel were married, and Christopher Columbus died. This was once the capital of Spain, and although it has lost this title, it's still the principal city of Castilla y Leon, the land of castles from which the word ‘Castilian’ is derived. Today, Valladolid is a bustling university city that thrives on its manufacturing industries. It is a down-to-earth, lively place that blends the old with the energetic new.

Faro serves as the Algarve's historic capital, where traditional Portuguese architecture meets the region's natural coastal beauty. The compact old town features whitewashed buildings, mosaic pavements and quiet plazas shaded by mature trees. Beyond the city limits, the Ria Formosa's lagoon system creates a protected habitat for migratory birds, while sandy barrier islands stretch along the Atlantic coast. While day trips beckon, don't overlook Faro's own golden beaches and the wildlife-rich lagoon.