From stylish Barcelona to sunny resort towns on the Costa Brava and Costa Dorada, Catalonia offers a wealth of attractions. Barcelona attracts those who love Gaudi's architecture, hot nightlife and thrilling restaurants. Elegant Tarragona's Roman ruins and amphitheater add to its historical appeal. Beach lovers flock to Mediterranean playgrounds including pine back-dropped Cape Salou, stunning Costa de Garraf, home to gay-popular beach resort Sitges, and the 40 sandy miles of La Maresme.

A popular budget holiday destination on the Costa Brava, the former fishing village of Lloret de Mar offers an appealing climate, great scenery and wealth of competitive accommodations. Visit the narrow streets of the Old Town and sites such as Can Xardo and Can Comadran, or take to the waves in Water World or sailing, parasailing or kayaking on the Mediterranean. A handful of excellent beaches round out the offerings of this Catalonian family resort, easily reached by car from Barcelona.

The Costa Dorada is one of the main tourist destinations on the Mediterranean. It is a rich and varied territory, with a long coastline bathed in sunshine and an interior dotted by quiet villages and cultivated fields. The Costa Dorada is much more than sun, sea and sand. It offers its visitors a wide range of leisure activities, culture, nature and history in an ideal setting of peace and tranquillity, perfect for holidays with the whole family.

Originally founded as a Roman city and now home to three UNESCO World Heritage Sites, Seville is bursting with antique charm. The Alcazar palace complex is a stunning collage of architectural styles, and the Cathedral will impress you with its beauty and its status as the burial site of Christopher Columbus. The Metropol Parasol is the world’s largest wooden structure, a massive mix of grids and swirls that contains a market and a terrace observatory.

It’s nicknamed the Eternal City for a reason. In Rome, you can drink from a street fountain fed by an ancient aqueduct. Or see the same profile on a statue in the Capitoline Museum and the guy making your cappuccino. (Which, of course, you know never to order after 11 am.) Rome is also a city of contrasts—what other place on earth could be home to both the Vatican and La Dolce Vita?

Land of Mermaids. Land of Orange and Lemon Groves. Land of Colors. This small city in Campania has earned a plethora of alluring names. Famed for its sea cliffs, the town's steep slopes look out over azure waters to Ischia, Capri and the Bay of Naples. The birthplace of Limoncello liqueur offers some good diving, great sea fishing, boat cruises and appetizing restaurants. Excellent hiking trails cross the peninsula. Rent a car or take a taxi if the steep streets look too intimidating.

From Shoreditch’s swaggering style to Camden’s punky vibe and chic Portobello Road, London is many worlds in one. The city’s energy means that no two days are the same. Explore royal or historic sites, tick off landmarks from your bucket list, eat and drink in exclusive Michelin-starred restaurants, enjoy a pint in a traditional pub, or get lost down winding cobbled streets and see what you stumble across – when it comes to London, the possibilities are endless.

Amsterdam is truly a biker’s city, although pedaling along the labyrinthine streets can get a little chaotic. Stick to walking and you won’t be disappointed. The gentle canals make a perfect backdrop for exploring the Jordaan and Rembrandtplein square. Pop into the Red Light District if you must—if only so you can say you’ve been there. The Anne Frank House is one of the most moving experiences a traveller can have, and the Van Gogh Museum boasts a sensational collection of works.

Once known for smog, traffic and tacky architecture, Athens is a city reformed thanks to fortunes brought by the 2004 Summer Olympics. Spotless parks and streets, an ultra-modern metro, new motorways, an accessible airport and all signs in perfect English make the city easily negotiable. Meriting more than a stopover en route to the islands, sophisticated Athens sites include many pillars of Western history, from the Acropolis to the Temple of Olympian Zeus, as well as treasures in the National Archaeological Museum.

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.

We won't lie: Niagara Falls is uber-touristy. There are wax museums and a Ripley's Believe It or Not Museum, and if it's a fast-food chain, you can probably find it here. But even the most jaded hipster shouldn't pass up a chance to visit this town, because the Falls themselves are spectacular.