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.

A city full of surprises with thousands of years of civilization just waiting to be explored. Dine under the vaults of the Roman circus, lose yourself in the charming alleys of the historic quarter. Discover the true World Heritage of Tarragona, a heritage of historic monuments and locations from Roman, medieval and modern eras. But it is also a heritage made of people, of human stories, of small moments. Tarragona reveals the essence of the Mediterranean.

Salou, on the Costa Dorada, nestles between quaint Cambrils and calm La Pineda. Just seven miles south of elegant Tarragona, the compact resort town is a family favourite, due in no small part to the existence of Port Aventura and Aquopolis theme parks. Gentle beaches and a slew of exciting fiestas in August add to Salou's appeal for families.

One of the most historic sites in Spain, Girona lies in northeast Catalonia, just 99 km (62 mi) from Barcelona. Founded by Romans, the city later was taken over by Moors and Franks before finally falling under the rule of Barcelona. Influenced by different cultures and religions, the city beckons visitors with beautiful architecture. The Old and New Town offer many opportunities to pleasurably get lost and observe local life and culture.

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.

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!

Liverpool's fortunes have historically been tied to shipping. But imports and exports like sugar, spice and tobacco pale in comparison with Liverpool's most famous export of all — The Beatles. Relive the hysteria at The Beatles Story Experience, and check out Paul's childhood home, but also leave time for exploring Liverpool Cathedral and the Walker Art Gallery.

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.

Westchester County, a collection of towns that serve as a popular suburb for the bordering New York City, is also the gateway to the Hudson River Valley, an area that promises a plethora of outdoor activities, from sailing to bird-watching to cross country skiing. The County also contains Rye Playland, a popular children's amusement park, historic sites from the American Revolution, the African American Heritage Trail and several famous houses, including Lyndhurst, a Gothic Revival mansion.

Laid out by British architect Edwin Lutyens, the Indian capital is a striking modern metropolis. A gracious contrast to Old Delhi's winding streets, the grand avenues and stately buildings of New Delhi are rich with history and culture, from Gandhi's Delhi home (and the site of his assassination) to the tomb of Humayun, a complex of Mughal buildings reminiscent of the Taj Mahal. Chaotic traffic is best left to the locals. Negotiate a good price for taxis or travel on the new Delhi Metro.

If you’re a history buff and a die-hard foodie, Chicago’s your kind of town. Take an architectural-history walking tour, then dine at Alinea (the most celebrated molecular-gastronomy restaurant in the U.S.). And don’t miss the Museum of Science and Industry, the biggest science museum in the Western Hemisphere.