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.

Home to Windsor Castle, the second residence of Queen Elizabeth II, Windsor is a popular day-trip destination from London. Those who tarry in the riverside town fill their time wandering the cobbled streets, popping in and out of the luxe boutiques, restaurants, and tea shops that tumble down toward the Thames River.

Southwest of London is Southampton (Soton to the locals), a metropolitan area centered around the port. However, tucked away on the side streets are ancient gems such as the Tudor House, Mottisfont Abbey, and "God's House," a museum located in a tower in the medieval wall. The ultra-modern Sea City Museum celebrates Southampton's seafaring past and the RMS Titanic. Looking for nightlife? Travelers can dance the hours away with bars, clubs, and live music, all accessible by public transportation.

Cheltenham was just your average, sleepy town until the discovery of a spring in 1716, after which it became Britain's most popular spa town. (Like Palm Springs without the casinos.) Local Cheltonians have a reputation for being wealthy and respectable, and a walk along the Promenade will give you a first-class view of their wonderful houses, shops and gardens. After taking in the waters at the Pittville Pump Room (great name for a spa), check out the Art Gallery and Museum to learn about the social history of Cheltenham.

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 largest city in Switzerland is a major contemporary art and shopping destination. Important artworks are displayed in the Kunsthaus and the Rietberg Museum. Those who consider shopping an art can hone their skills along Bahnhofstrasse and Niederdorf. Chagall's stained-glass windows in the Fraumünster amaze. Zurich's 500 clubs and bars, including several in swimming pools, pulse with life till the early hours. This city on Lake Zurich has excellent public transport and a free bike-hire system.

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?

From ornate mansions to ocean views, this charming city - the largest in Maine - will enchant you. Saunter down the brick sidewalks and cobblestone streets of the revitalized Old Port District, where you can browse through bookstores, explore craft shops and eat to your heart's content. Visit the Portland Head Light, which dates back to 1791, and is the oldest lighthouse still in continuous use in the U.S. The great poet Henry Wadsworth Longfellow is the city's native son, and you can visit his childhood home, the Wadsworth-Longfellow House. With kids in hand, enjoy the highly interactive Children's Museum of Maine. And then go next door to the calmer Portland Museum of Art, a small, but eclectic museum with Impressionist works, Maine landscapes by Homer and Wyeth and other collections. Land or sea is an option here, so if you're tired of the street life, take one of the popular scenic cruises or whale watches, or hop on a ferry to the islands in Casco Bay. At the end of the day, and without kids in hand, unwind and rest your tired feet at one of the city's brewpubs.

Known as the safari capital of Africa, Nairobi is an energetic, modern city that serves as a fascinating introduction to both wildlife and nightlife. Music clubs pulse with life, shops and markets bustle, and a mélange of restaurants will tempt your palate in this former Maasai watering hole. Top sights include the Karen Blixen Museum, Giraffe Centre and the black rhinos of Nairobi National Park. The compact city centre is safe to walk in and taxis make other areas accessible.

White beaches, a sparkling sea, a strawberry daiquiri in hand—what more do you need in a holiday? Marco Island brings visitors the best that the Ten Thousand Islands have to offer. Scavenge for seashells or hit the links for a sunny session of golf. Explore the Everglades in a swamp buggy or enjoy a rejuvenating nature hike at the Rookery Bay Reserve.