Tossa del Mar has beautiful beaches—and tourists flock to them in summer, so make sure you have a reservation if you’re planning to visit in high season. Enjoy the seafront restaurants (and, of course, fresh-caught fish specialties) and many tapas bars in this charming Catalan town.

Tiny, hidden bays line the coast around sleepy Cadaques, creating a series of private beaches near the French border. Thanks to their boat-only access, an afternoon of swimming and sunbathing without crowds is as simple as hiring a skiff and cruising the rocky shoreline.

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.

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.

The small city of Sitges parties big. The nightlife is thumping, the people are gorgeous and the annual Carnival festival is utterly epic. A countercultural touchstone, Sitges is lively and very LGBT friendly. Native food and beverage is sublime—you simply must sample the Malvasia wine, made from grapes descending from Ancient Greece. Don’t miss the Museu Romàntic "Can Llopis" or, if you’re in Sitges in October, the world-renowned Sitges Film Festival, a cinematic extravaganza of horror, sci-fi and fantasy.

Everyone who visits Paris for the first time probably has the same punchlist of major attractions to hit: The Louvre, Notre Dame, The Eiffel Tower, etc. Just make sure you leave some time to wander the city’s grand boulevards and eat in as many cafes, bistros and brasseries as possible. And don’t forget the shopping—whether your tastes run to Louis Vuitton or Les Puces (the flea market), you can find it here.

Malaga, Pablo Picasso's birthplace and the gateway to the Costa del Sol, is a hectic, sometimes unruly city of 550,000. An impressive number of museums and monuments, including the 11th-century Alcazaba fort and Museu Picasso Malaga, provide plenty of diversions for those who opt not to spend all their time on the coast's famed beaches and in their accompanying bars. The old city bustles with taverns and bistros. The generous Paseo del Parque offers a delightful stroll past banana trees and fountains.

The town that gave the country (and port wine) its very name, Porto is Portugal’s second-largest metropolis after Lisbon. Sometimes called Oporto, it's an age-old city that has one foot firmly in the industrial present. The old town, centered at Ribeira, was built on the hills overlooking the Douro River, and today is a UNESCO World Heritage Site. The 14th-century São Francisco church is a main attraction, as are the local port wine cellars, mostly located across the river at Vila Nova de Gaia.

Lisbon, the capital city of Portugal, has become an increasingly popular place to visit in recent years, with a warm Mediterranean climate in spite of its place facing the Atlantic Ocean. Full of bleached white limestone buildings and intimate alleyways, Lisbon's mix of traditional architecture and contemporary culture makes it the perfect place for a family holiday. Things to do in Lisbon: As Portugal's capital, there is a lot to see and do in Lisbon. Even exploring the city centre will take a few days out of a family holiday as there is no real central district, although Praça do Comércio is a good central place to start, in Baxia, or Rossio, the city's main square which has a sort of Trafalgar Square feel to it. Or you might try climbing up the Cristo Rei, a huge statue of Christ with spectacular views across the whole city. The Castelo de São Jorge also offers great views and isn't quite such a steep climb. A short tram ride to the west of Lisbon will also bring you to Belem, where you can explore attractions like the Belem Tower and the Belem Cultural Centre, which features a fantastic art collection including works by Dali, Picasso, Warhol and Magritte. In downtown Lisbon, you'll also want to visit the Gulbenkian, which has to be Portugal's answer to the British Museum full of fascinating cultural artifacts and with some superb gardens in the grounds. It's possible to have a fascinating educational family holiday in Lisbon, and there are also plenty of great beaches to work on your tan.

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.

You've probably heard that Guinness tastes better in Dublin (fresh from the factory), but what you may not know is that Dublin is a perfect destination for the whole family. No, we're not suggesting you let the kiddies drink a pint. Instead, take them to the Dublin Zoo, to feed the ducks in Stephen's Green or on a picnic in Phoenix Park. Scholars enjoy walking in the literary footsteps of such writers as Yeats and Joyce, while discerning shoppers have their pick of designer boutiques.

"The City of Tribes" provides a fun blast of the Ireland many first-time visitors expect. The compact city centre, with its winding streets, packed pubs and air of celebration, is easily walked - or pubcrawled. The west-coast city of almost 70,000 is home to merry bands of students, artists, writers and craftspeople, and is merriest during summer's Galway's Arts Festival. Don't miss shopping for Claddagh rings, the Druid Theatre or having a pint o' the black stuff at the atmospheric Tigh Neachtain pub.

Belfast has grown into a cosmopolitan city and become a popular weekend-break destination. The city pulses with an irrepressible optimism and energy. The Northern Ireland capital has an increasing number of intriguing bus, taxi, boat and pedestrian tours. Attractions such as Ulster Folk Museum and Belfast Cathedral, award-winning restaurants, lively bars from modern lounges to traditional pubs, hip clubs, great shopping, impressive theatres, galleries and live music make it a vivacious destination.

Edinburgh is Scotland’s capital city, renowned for its heritage, culture and festivals. Take a long walk around the centre to explore the World Heritage Sites of the Old Town and New Town, as well as all the area’s museums and galleries. Then stop for a delicious meal made from fresh Scottish produce before heading out to take in one of Edinburgh’s many events — including the famous summer festivals of culture, or the Winter Festivals of music, light and ceilidhs.