Encircled by some of the best-preserved defense walls in Europe, ancient Avila seems straight from the Castile region's medieval past. Nighttime illumination only adds to the allure of the turrets, fortified palaces, and cathedrals of this storybook World Heritage city.

Stroll Las Ramblas and enjoy Barcelona's unique blend of Catalan culture, distinctive architecture, lively nightlife and trendy, stylish hotels. You'll find Europe's best-preserved Gothic Quarter here, as well as amazing architectural works by Gaudi. La Sagrada Familia, considered Gaudi's masterpiece, is still under construction (your entrance fee helps to fund the project). Feel like a picnic? Look no further than the rambunctious La Boqueria market, where you can stock up on local delicacies.

The châteaux, towns, and villages of the Loire Valley are within easy reach of Blois—but there’s more to this hillside city than its Loire River location. Its royal château, the one-time favorited stronghold of kings, is the star attraction, and there’s enough gardens, churches, and medieval old town lanes to fill any itinerary.

The Welsh capital may have begun its life as a Roman fort, but it's since become a bustling city. Where the fort once stood, Cardiff Castle has held court since the 11th century. It remains a central presence in the city, now full of lively art and music venues, hip boutiques, fun bars and modern hotels. Even with so many new and exciting things to see, the National History Museum is still the most visited attraction in Wales. Don't be the only visitor who plays hooky!

Surrounded by country estates, Groningen pairs the old-world spirit of north Holland with the youthful energy of a university town. From the cafes of Grote Markt to the abstract architecture of Groninger Museum, the city is a hip mashup of contemporary Dutch culture.

Known as the "Island of Colours" thanks to its jewel-coloured waters and building painted in vivid primary tones, the horseshoe-shaped island of Milos floats serenely in the Aegean Sea. It was here that the world-famous Venus de Milo statue was discovered. Though she now holds court at the Louvre, Milos has other beauties to admire. There are dozens of beaches, all different colours and all different combinations of sand, stone and shell. Explore the ancient theatre, catacombs and windmills in Tripiti village, then cap off your day with a cinematic sunset.

Over the centuries, many cultures have added their mark to this prized piece of land. Today, you can experience those influences firsthand by exploring Istanbul’s mahalles (neighbourhoods). From the holy sites of Sultanahmet and the 19th-century European elegance of Beyoğlu to the high fashion of Nişantaşı, the vibrant café society of Kadıköy and the football-loving streets of Beşiktaş, it’s easy to see why travellers say that Istanbul isn’t just one city, but many cities within one.

The first time you go to New York, go ahead and be a sight-seer—everyone should visit the Statue of Liberty, the Met, Times Square, etc. But on a return trip, pick a neighbourhood and go deep. You’ll find hole-in-the-wall bars, great delis, quirky shops… exploring the non-touristy side of New York is an incredibly rewarding experience for a traveller.