Milan is the prime draw in Italy's most prosperous province. The Cathedral, La Scala opera house and Santa Maria delle Grazie, home of da Vinci's Last Supper, are just some of the sights. Equally fascinating is the belle poque splendor of 19th-century Galleria Vittorio Emanuele II. When not on one of its frequent strikes, Milan's Metro is an excellent way to explore. Renting a car opens up the region, with its towns full of Romanesque architecture and the peninsula of Sirmione and Gardesana coast.

Perfectly positioned on a lake with the Alps at its back, lucky Lugano has a little bit of everything. Ride a cable car up Monte San Salvatore or Monte Bre for sunny panoramas of lake, rivers, mountains and red-roofed buildings. Explore the town's churches, cathedrals and the expressive and colorful Piazza della Riforma. Sample some slow-cooked Ticinese cuisine, explore the lake on a boat or spend the day at the lido with its Olympic-sized pool.

On the south side of the Alps, Lake Maggiore is the second largest lake in Italy. Since the climate is mild year-round, the area is filled with Mediterranean vegetation and exotic plants. Lake Maggiore was featured in Ernest Hemingway's infamous novel, A Farewell to Arms, when the protagonist and his lover must row across the lake in order to escape the Italian Carabinieri (think police in military uniforms). Here's hoping you won't have any run-ins of that nature.

This Italian-speaking region in Southern Switzerland is on the border with Italy. Bellinzona is the capital, and Lugano is the most important city in the canton, known for its beautiful waterfront, steep hillsides and gorgeous lake views. Castelgrande is a lovely medieval castle overlooking the city that has recently been restored. The Centovalli Railway is a scenic train that operates between Locarno, Switzerland and Domodossola, Italy, traveling through the breathtaking "Hundred Valleys." Lake Como is nearby, the home of People magazine’s “Sexiest Man Alive,” George Clooney.

A magnet for skiers and hikers, these dramatic peaks – including the iconic Matterhorn – range from 3,000 to 15,000 feet and spread across three-fifths of the country. Abundant glaciers, scenic valleys and gorgeous alpine lakes add to the region's visual appeal. The Glacier Express train travels the 7.5-hour route through the Swiss Alps from Zermatt to St. Moritz, passing through fairy-tale villages and over 291 bridges along the way.

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.

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.

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.

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.

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.

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.

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.