Step outside your hotel, for a stroll through the streets of the heart of the English-speaking world. In this city of nearly seven million, you'll see everything from 12th-century fortifications to modern skyscrapers, formal parks to punk rockers. Your Tour Director will lead you to some of the most famous sites. Walk along the Thames River. Cross Trafalgar Square. See bustling Piccadilly Circus. Pass trendy shops and cafés in Bohemian Soho on your way to Covent Garden, a 13th-century fruit and vegetable garden transformed into a maze of narrow streets and pedestrian walkways burgeoning with street performers, open-air markets and boutiques.

Nothing’s more British than fish and chips—there are eight fish and chip shops (“chippies”) for every McDonald’s in the country. Head to an authentic pub with your Tour Director for a taste of this national food, generally served with malt vinegar.

Join a licensed local guide for an in-depth look at London, from the royal haunt of Buckingham Palace (the official London residence of Queen Elizabeth II) to the slightly more democratic Speakers’ Corner of Hyde Park, where anyone can pull up a soapbox and orate to his heart’s content. You’ll see the changing of the guard (season permitting), the clock tower of Big Ben with its 14-ton bell, and Westminster Abbey, where almost every English king and queen since William the Conqueror has been crowned. After a stop at the Houses of Parliament, continue on to the magnificent St. Paul’s Cathedral, the masterpiece of London architect Christopher Wren.

See how the Queen relaxes on this guided tour of the royal weekend estate, originally built as a fortress in the 11th century under William the Conqueror. Tiptoe through the tulips (and other flowers) in the East Terrace Gardens, marvel at the Gothic St. George's Chapel, or peek into the rooms of Queen Mary's doll house with its gallery of pint-size perfect furniture. Get decorating tips for your own country estate (or dorm room, as it may be).

Take the Eurostar under the English Channel. Faster than you can say... anything, in French, you'll whiz through a tunnel and arrive in Paris.

The world's largest art museum, the Louvre is housed in a medieval fortress-turned-castle so grand it's worth a tour itself. You walk through the 71-foot glass pyramid designed by I.M. Pei and added in 1989, and step into another world-one with carved ceilings, deep-set windows, and so many architectural details, you could spend a week just admiring the rooms. But check out the art on the walls. The Mona Lisa is here, as well as the Venus de Milo and Winged Victory (the headless statue, circa 200 BC, discovered at Samothrace). The Louvre has seven different departments of paintings, prints, drawings, sculptures and antiquities. Don't miss the Egyptian collection, complete with creepy sarcophagi, or the collection of Greek ceramics, one of the largest in the world. (Please note the Louvre is closed on Tuesdays.)

What's that huge white arch at the end of the Champs-Élysées? The Arc de Triomphe, commissioned by Napoleon in 1806 after his victory at Austerlitz. A licensed local guide will give the goods on this, and other, Parisian landmarks. Spot chic locals (and tons of tourists) strolling the Champs-Élysées. Look up at the iron girders of the Eiffel Tower, built for the 1889 World's Fair to commemorate the centenary of the French Revolution. See Les Invalides (a refuge for war wounded), the École Militaire (Napoleon's alma mater), and the Conciergerie (the prison where Marie Antoinette was kept during the French Revolution). Then head to the Île de la Cité -- a small island in the Seine -- to see Notre Dame Cathedral. Look up at the great gray spires, grotesque gargoyles, and huge, round stained-glass windows (even more impressive than in the Disney version of “The Hunchback of Notre Dame”).

The ultimate palace, Versailles was built by Louis VIX, and housed the royal family and its groveling court from 1582, when the Sun King moved in, to the French Revolution. Everything in Versailles is worth a look, from the 250-foot-long Hall of Mirrors, with themed salons-"war" and "peace"-on either side, to Marie Antoinette's faux country hamlet. When being a queen became too much to bear, she would pretend to be a commoner, tending her sheep and wearing peasant clothes. (Please note Versailles is closed on Mondays.)

See the city from the water on an hour-long cruise along the River Seine. The Seine cuts right through Paris, dividing the city in half. See the Eiffel tower rising up on the Left Bank, the walls of the Louvre on the Right Bank. A guide will point out other monuments and architectural marvels as you pass, many of which are illuminated by clear white light at night.

The Côte d'Azur's largest city spills down the hillsides to pebble beaches that line the shore. Your Tour Director will show you around the narrow pedestrian streets and tiny squares of "Le Vieux Nice" (Old Town), which is sprinkled with old palaces and mansions. Stroll down the Promenade des Anglais, which runs parallel to the water. Backed by Nice's grand hotels, the Promenade was built in the 19th century for the British who flocked here en masse.

The Côte d'Azur's largest city spills down the hillsides to pebble beaches that line the shore. Your Tour Director will show you around the narrow pedestrian streets and tiny squares of "Le Vieux Nice" (Old Town), which is sprinkled with old palaces and mansions. Stroll down the Promenade des Anglais, which runs parallel to the water. Backed by Nice's grand hotels, the Promenade was built in the 19th century for the British who flocked here en masse.

On the Mediterranean coast, five miles from the Italian border, lies the tiny, glittering independent state of Monaco. Ruled by the Grimaldi family since the 13th century, Monaco is the epitome of French Riviera glamour. Your Tour Director will lead you on this brief adventure. See the casino that Charles III opened in the 1850s to avert financial straits; needless to say, his plan worked--so well, in fact, that Monaco is a nearly tax-free state. Drop in on Prince Rainier (OK, see his house, the Palais du Prince), and visit a parfumerie in nearby Eze, where rich scents are made from local flowers such as jasmine, rose, and lavender.

Stop in Pisa to see the famous leaning bell tower. It was already partly finished when builders realized that -- surprise! -- the ground beneath was too soft to support it. They tried to correct the tilt by putting a slight bend in the structure, but the extra weight just made it tilt more. Famous as it is, the leaning tower is just one component of Pisa’s Campo dei Miracoli (Field of Miracles). Rising from an immaculate green lawn, the baptistery, duomo, and tower are fine examples of Pisan Romanesque architecture. All three are clad in intricately carved black and white marble, and on bright summer days their brilliance can be blinding.

Immerse yourself in the charms of old-world Firenze, a red-brick splendor set in the rolling green hills of Tuscany. The birthplace and focal point of the Italian Renaissance, Florence still has the masterpieces to prove it. Brunelleschi’s elegant Duomo (dome) dominates the skyline, and around every corner is an architectural triumph filled with wall after wall of incomparable art. Your local licensed guide will take you to Giotto's Bell Tower and the aptly named Gates of Paradise, the bronze east doors of the Baptistery that spurred the burgeoning Renaissance. The boy guarding the Palazzo Vecchio with his slingshot is just a copy of Michelangelo’s David; the real statue is over at the Accademia. Don’t overlook the tombs of Michelangelo, Galileo, and Machiavelli at the Chiesa di Santa Croce, and definitely don’t overlook Florence’s amazing leather goods. Check them out when you visit one of the area’s famed workshops.

Stroll across red brick piazzas. Pause in black-and-white striped churches. Gaze up at bell towers stretching high into the sky. Proud Siena is a glimpse into Italy’s medieval past, when Florence, Pisa, and Siena were all fierce rivals for European trade, money, and glory. As international students bask in the sunny Piazza del Campo, you’ll see the surrounding Palazzo Pubblico, home of the civic museum, and the Torre del Mangia, Siena’s bell tower. The tower was named after an extremely stout bell-ringer, whose name, Mangiaguadagni (“eats profits”) reflected his love of the local cuisine. Earn your own lunch by climbing the tower’s 503 steps.

A small town of narrow streets and medieval walls, Assisi might never have been famous had it not been the birthplace of St. Francis, the founder of the Franciscan order. Today it is a major destination for religious pilgrims and art lovers alike. You’ll explore the Basilica of St. Francis, built in the 13th century to hold the saint’s body. Ironically, the body was hidden so well in the basilica that it took 600 years of digging to find it.

Baroque-en hearted? Revive your spirits with a walk past Rome's most beautiful and unusual Baroque fountains. At the foot of the Spanish Steps, elegant cafes once favored by visiting Brits and Americans surround the central fountain. The water pressure here was so low that the artist had to sink the fountain into the ground to get any water going through it, so he went ahead and designed the fountain to look like a sinking ship. There's no shortage of water pressure at the nearby Trevi Fountain, a Baroque extravagance designed by master sculptor Bernini. At the Pantheon you'll see the largest concrete dome ever constructed. An oculus, or hole, in the dome lets sunlight into the beautiful temple, dedicated to all the gods.

Gods and gladiators, glory and gore. Ancient Rome lives on in its spectacular monuments, flavoring the frenetic present with tastes of the past. Don a space-age Whisper headset to get the inside scoop on the most spectacular, the Colosseum, a grisly battle arena that seated more than 45,000. An enormous retractable roof awning system kept spectators cool on sunny days. The nearby Forum provides a glimpse into everyday ancient life, with markets, meeting places, and temples all combined into one vast space. Move into Christian Rome at St. Peter’s Basilica, the triumphal Renaissance church flanked by rows of columns radiating outward like welcoming arms. Within the church Michelangelo’s masterpieces are on display, the “Pietà” in the main church and the recently restored ceiling frescoes and “Last Judgment” in the Sistine Chapel. Continue your trek through time at Piazza Venezia, site of the enormous monument to Victor Emmanuel II, Italy’s first king, and of the Palazzo Venezia, where Mussolini set up his headquarters and from whose porch his mother was said to eavesdrop on citizens below. (The Sistine Chapel is closed on most religious holidays and Sundays, except for the last Sunday in each month).

Perched on the rocky cliffs overlooking the Bay of Naples, Sorrento is a beautiful resort town with stunning views of the sea. From here, the island of Capri is less than an hour away by boat. Always a favorite destination of the international jet-set, Capri still offers glittering beaches and old world glamour. Weather permitting, you’ll take a boat to the Blue Grotto, where sunlight reflected from beneath the water bathes the cave in a silver-blue light.

Travel from Sorrento to Brindisi, stopping to see the city where time stood still, literally. Once an important Roman city with 20,000 residents, Pompeii was frozen in time nearly 2000 years ago, when Mount Vesuvius erupted and buried the city under 30 feet of mud and volcanic ash. Forgotten for centuries after the eruption, Pompeii was discovered in the 1600s and is now completely excavated. On your tour you will learn how Romans of all classes lived their lives--not only from large public structures, but from details like political graffiti, bars, and street signs.

Prophet from the past. Explore the impressive ruins at Delphi, which the Greeks considered the center of the world. Within the depths of the Temple of Apollo, a priestess would inhale intoxicating vapors that used to rise from the earth and, thus inspired, deliver the prophecies of Apollo. Modern visitors might find more inspiration in the view from Mount Parnassus, over 8000 feet high.

It’ll all be Greek to you. Head to a taverna in the Plaka to hear Greek music, weave through the steps of traditional Greek dancing, and sample such Greek favorites as souvlaki (a lamb sandwich), spanakopita (flaky phyllo dough filled with spinach and cheese), moussaka (Greek lasagna), and baklava (a phyllo, honey, and nut dessert). Opa!

Not just another crowded dusty city, Athens has developed from the birthplace of democracy to a bustling modern metropolis. With a local licensed guide, start your time travel at the ancient hot spots of the first Olympic site and the sprawling Acropolis, classical Athens’ religious and civic center. The awe-inspiring Parthenon -- a temple dedicated to Athens’ patron saint Athena -- is the obvious centerpiece, but take time to examine the building next door, where sculpted women hold up the roof with their heads, and the amazing view of modern Athens below. Jump back to the present in Syntagma Square, the center of the modern city, to see the Parliament building and the British-style changing of the guards ceremony. (There’s a rather un-British flair to it, however -- the Greek guards wear white skirts, head scarves, and shoes and knee bands adorned with pom-poms.) Continue to Omonia Square, Athens' other main meeting point, to relax by the splashing central fountain ringed with palm trees.

Set out to sea. Take three days to tour four islands of the Aegean. From Kusadasi and Patmos to Rhodes and Mykonos, you'll get to know authentic Greek island culture and some of the Aegean's best beaches. First is Mykonos, one of the Mediterranean's busiest resorts, with everything from a great museum filled with 7th-century artifacts to pure white, cubistic buildings, Crayola-colored boats, gourmet restaurants and...more beaches. Then it is on to the hilly, seahorse-shaped Patmos, you'll see gold-leafed Byzantine frescos at the Monastery of St. John, the capital city of Hora, the busy port of Skala and beautiful beaches. Next stop is the Turkish village of Kusadasi. Finally, Rhodes, with the tile-roofed gazebos, huge trees and open-air plazas of Old Town, whitewashed streets twisting between whitewashed buildings, and a collection of beaches-one of the most popular right in town.

Contemplate the sea god Poseidon from his temple perched high atop the hill of Cape Sounion, the southern-most tip of Central Greece. Stand among the tall, marble pillars rising up from the slippery slabs of rock and look out over the calm blue Aegean Sea. The Temple of Poseidon, built around the same time as the Parthenon (between 450-440 BC), is a refreshing point of calm after the chaos of modern Athens.