Spread over a string of seven hills north of the Rio Tejo (Tagus River) estuary, Lisbon presents an intriguing variety of faces to those who negotiate its switchback streets. In the oldest neighborhoods, stepped alleys whose street pattern dates back to Moorish times are lined with pastel-color houses decked with laundry; here and there, miradouros (vantage points) afford spectacular river or city views. In the grand 18th-century center, calçada à portuguesa (black-and-white mosaic cobblestone) sidewalks border wide boulevards. Elétricos (trams) clank through the streets, and blue-and-white azulejos (painted and glazed ceramic tiles) adorn churches, restaurants, and fountains. Of course, parts of Lisbon lack charm. Even some downtown areas have lost their classic Portuguese appearance as the city has become more cosmopolitan: shiny office blocks have replaced some 19th- and 20th-century art nouveau buildings. And centenarian trams share the streets with "fast trams" and noisy automobiles. Lisbon bears the mark of an incredible heritage with laid-back pride. In preparing to host the 1998 World Exposition, Lisbon spruced up public buildings, overhauled its subway system, and completed an impressive second bridge across the river. Today the former Expo site is an expansive riverfront development known as Parque das Nações, and the city is a popular port of call for cruises, whose passengers disembark onto a revitalized waterfront. Downtown, all the main squares have been overhauled one by one. In its heyday in the 16th century, Lisbon was a pioneer of the first wave of globalization. Now, the empire is striking back, with Brazilians and people from the former Portuguese colonies in Africa enriching the city’s ethnic mix. There are also more than a few people from other European countries who are rapidly becoming integrated. But Lisbon's intrinsic, slightly disorganized, one-of-a-kind charm hasn't vanished in the contemporary mix. Lisboetas (people from Lisbon) are at ease pulling up café chairs and perusing newspapers against any backdrop, whether it reflects the progress and commerce of today or the riches that once poured in from Asia, South America, and Africa. And quiet courtyards and sweeping viewpoints are never far away. Despite rising prosperity (and costs) since Portugal entered the European Community in 1986, and the more recent tourism boom, prices for most goods and services are still lower than most other European countries. You can still find affordable places to eat and stay, and with distances between major sights fairly small, taxis are astonishingly cheap. All this means that Lisbon is not only a treasure chest of historical monuments, but also a place where you won’t use up all your own hard-earned treasure. Though Baixa, or downtown, was Lisbon’s government and business center for two centuries until the mid-20th century, the most ancient part of the city lies on the slopes of a hill to its east. Most visitors start their exploration there, in Alfama. All but the very fittest ride the antique 28 eléctrico (streetcar) most of the way up to Saint George’s Castle (or take the 737 bus or a taxi all the way up). The views from its ramparts afford a crash course in the city’s topography. You can then wander downhill to absorb the atmosphere (and more views) in the winding streets below. There are several museums and other major sights in this area, so give yourself plenty of time. Baixa itself is interesting mostly for its imposing architecture and its bustling squares, as well as an unusual cast-iron elevator that affords yet more panoramic views. But a new design museum is what persuades most visitors to linger. On the slope to the west is the chic Chiado district, traditionally the city’s intellectual center, with theaters, galleries, and literary cafés. A little farther uphill is the Bairro Alto. Originally founded by the Jesuits (whose church is among Lisbon’s finest), it was long known for rather sinful pursuits and today is a great place for barhopping. Both neighborhoods are great places to shop. Modern Lisbon, meanwhile, begins just north of Baixa. The city’s tree-lined central axis, the Avenida da Liberdade, forges up to the Praça Marquês de Pombal roundabout, with a rather formal park beyond. Dotted around the area north of here are major museums and other sights. West of Baixa, along the river, former docklands such as Alcântara are now home to stylish restaurants and nightclubs, as well as the odd museum. Farther west is historic Belém, which boasts yet more museums—and some famous pastries. On the city’s eastern flank, the Parque das Nações has family-oriented attractions and green spaces.

Lively, commercial Oporto is the second largest city in Portugal after Lisbon. Also called Porto for short, the word easily brings to mind the city's most famous product - port wine. Oporto's strategic location on the north bank of the Douro River has accounted for the town's importance since ancient times. The Romans built a fort here where their trading route crossed the Douro, and the Moors brought their own culture to the area. Oporto profited from provisioning crusaders en route to the Holy Land and enjoyed the riches from Portuguese maritime discoveries during the 15th and 16th centuries. Later, port wine trade with Britain compensated for the loss of the spice trade and the end of gold and gem shipments from Brazil. In the 19th century, the city went through a period of new prosperity with the rise of industries. In its wake followed the building of workers' quarters and opulent residences. Since the declaration of Oporto as a World Heritage Site by UNESCO, the city aims to build up a cultural reference that will provide it with a new image, based on deep historical roots. Among the attractions that make Oporto such an interesting place are its graceful bridges spanning the Douro River, a picturesque riverfront quarter and, most notable, its world-famous port wine lodges. Although Oporto is a bustling centre and home to many different businesses, the source of its greatest fame is the rich, sweet fortified red wine we know as port.

Days at sea are the perfect opportunity to relax, unwind and catch up with what you’ve been meaning to do. So whether that is whale watching from the Observatory Lounge, writing home to your loved ones or simply topping up your tan by the pool, these blue sea days are the perfect balance to busy days spent exploring shore side.

Time in Bilbao (Bilbo, in Euskera) may be recorded as BG or AG (Before Guggenheim or After Guggenheim). Never has a single monument of art and architecture so radically changed a city. Frank Gehry's stunning museum, Norman Foster's sleek subway system, the Santiago Calatrava glass footbridge and airport, the leafy César Pelli Abandoibarra park and commercial complex next to the Guggenheim, and the Philippe Starck AlhóndigaBilbao cultural center have contributed to an unprecedented cultural revolution in what was once the industry capital of the Basque Country.Greater Bilbao contains almost 1 million inhabitants, nearly half the total population of the Basque Country. Founded in 1300 by Vizcayan noble Diego López de Haro, Bilbao became an industrial center in the mid-19th century, largely because of the abundance of minerals in the surrounding hills. An affluent industrial class grew up here, as did the working class in suburbs that line the Margen Izquierda (Left Bank) of the Nervión estuary.Bilbao's new attractions get more press, but the city's old treasures still quietly line the banks of the rust-color Nervión River. The Casco Viejo (Old Quarter)—also known as Siete Calles (Seven Streets)—is a charming jumble of shops, bars, and restaurants on the river's Right Bank, near the Puente del Arenal bridge. This elegant proto-Bilbao nucleus was carefully restored after devastating floods in 1983. Throughout the Casco Viejo are ancient mansions emblazoned with family coats of arms, wooden doors, and fine ironwork balconies. The most interesting square is the 64-arch Plaza Nueva, where an outdoor market is pitched every Sunday morning.Walking the banks of the Nervión is a satisfying jaunt. After all, this was how—while out on a morning jog—Guggenheim director Thomas Krens first discovered the perfect spot for his project, nearly opposite the right bank's Deusto University. From the Palacio de Euskalduna upstream to the colossal Mercado de la Ribera, parks and green zones line the river. César Pelli's Abandoibarra project fills in the half mile between the Guggenheim and the Euskalduna bridge with a series of parks, the Deusto University library, the Meliá Bilbao Hotel, and a major shopping center.On the left bank, the wide, late-19th-century boulevards of the Ensanche neighborhood, such as Gran Vía (the main shopping artery) and Alameda de Mazarredo, are the city's more formal face. Bilbao's cultural institutions include, along with the Guggenheim, a major museum of fine arts (the Museo de Bellas Artes) and an opera society (Asociación Bilbaína de Amigos de la Ópera, or ABAO) with 7,000 members from Spain and southern France. In addition, epicureans have long ranked Bilbao's culinary offerings among the best in Spain. Don't miss a chance to ride the trolley line, the Euskotram, for a trip along the river from Atxuri Station to Basurto's San Mamés soccer stadium, reverently dubbed "la Catedral del Fútbol" (the Cathedral of Football).

Bordeaux as a whole, rather than any particular points within it, is what you'll want to visit in order to understand why Victor Hugo described it as Versailles plus Antwerp, and why the painter Francisco de Goya, when exiled from his native Spain, chose it as his last home (he died here in 1828). The capital of southwest France and the region's largest city, Bordeaux remains synonymous with the wine trade: wine shippers have long maintained their headquarters along the banks of the Garonne, while buyers from around the world arrive for the huge biennial Vinexpo show (held in odd-number years).Bordeaux is, admittedly, a less exuberant city than many others in France, but lively and stylish elements are making a dent in its conservative veneer. The cleaned-up riverfront is said by some, after a bottle or two, to exude an elegance reminiscent of St. Petersburg, and that aura of 18th-century élan also permeates the historic downtown sector—“le vieux Bordeaux"—where fine shops invite exploration. To the south of the city center are old docklands undergoing renewal—one train station has now been transformed into a big multiplex movie theater—but the area is still a bit shady. To get a feel for the historic port of Bordeaux, take the 90-minute boat trip that leaves Quai Louis-XVIII every weekday afternoon, or the regular passenger ferry that plies the Garonne between Quai Richelieu and the Pont d'Aquitaine in summer. A nice time to stroll around the city center is the first Sunday of the month, when it's pedestrian-only and vehicles are banned.

Bordeaux as a whole, rather than any particular points within it, is what you'll want to visit in order to understand why Victor Hugo described it as Versailles plus Antwerp, and why the painter Francisco de Goya, when exiled from his native Spain, chose it as his last home (he died here in 1828). The capital of southwest France and the region's largest city, Bordeaux remains synonymous with the wine trade: wine shippers have long maintained their headquarters along the banks of the Garonne, while buyers from around the world arrive for the huge biennial Vinexpo show (held in odd-number years).Bordeaux is, admittedly, a less exuberant city than many others in France, but lively and stylish elements are making a dent in its conservative veneer. The cleaned-up riverfront is said by some, after a bottle or two, to exude an elegance reminiscent of St. Petersburg, and that aura of 18th-century élan also permeates the historic downtown sector—“le vieux Bordeaux"—where fine shops invite exploration. To the south of the city center are old docklands undergoing renewal—one train station has now been transformed into a big multiplex movie theater—but the area is still a bit shady. To get a feel for the historic port of Bordeaux, take the 90-minute boat trip that leaves Quai Louis-XVIII every weekday afternoon, or the regular passenger ferry that plies the Garonne between Quai Richelieu and the Pont d'Aquitaine in summer. A nice time to stroll around the city center is the first Sunday of the month, when it's pedestrian-only and vehicles are banned.

Days at sea are the perfect opportunity to relax, unwind and catch up with what you’ve been meaning to do. So whether that is whale watching from the Observatory Lounge, writing home to your loved ones or simply topping up your tan by the pool, these blue sea days are the perfect balance to busy days spent exploring shore side.

Originally a little fishing village, Cherbourg has developed into a historic port designed by Vauban. This was also a strategic naval port during the Napoleonic wars; there is a marina with over 1000 moorings. “Cap de la Hague” is to the West and the “Pointe de Barfleur” to the East. This port, which belongs to Normandy, is a region that has provided inspiration for countless artists and writers, and is the land of apple orchards and rolling farmland dotted with villages of half-timbered houses. Boasting a wealth of abbeys and châteaux, as well as a superb coastline, it offers something for everyone. Cherbourg was also the first stop of RMS Titanic after it left Southampton, England. On 19 June 1864, the naval engagement between USS Kearsarge and CSS Alabama took place off Cherbourg. The Battle of Cherbourg, fought in June 1944 following the Normandy Invasion, ended with the capture of Cherbourg on June 30.

About 8 miles downstream—which means seaward, to the east—from central London, Greenwich is a small borough that looms large across the world. Once the seat of British naval power, it is not only home to the Old Royal Observatory, which measures time for our entire planet, but also the Greenwich Meridian, which divides the world into two—you can stand astride it with one foot in either hemisphere. Bear in mind that the journey to Greenwich is an event in itself. In a rush, you can take the driverless DLR train—but many opt for arriving by boat along the Thames. This way, you glide past famous sights on the London skyline (there’s a guaranteed spine chill on passing the Tower) and ever-changing docklands, and there’s usually a chirpy Cock-er-ney navigator enlivening the journey with his fun commentary. A visit to Greenwich feels like a trip to a rather elegant seaside town—albeit one with more than its fair share of historic sites. The grandiose Old Royal Naval Hospital, designed by Christopher Wren, was originally a home for veteran sailors. Today it’s a popular visitor attraction, with a more glamorous second life as one of the most widely used movie locations in Britain. Greenwich was originally home to one of England's finest Tudor palaces, and the birthplace of Henry VIII, Elizabeth I, and Mary I. Inigo Jones built what is considered the first "classical" building in England in 1616—the Queen's House, which now houses a collection of fine art. Britain was the world’s preeminent naval power for over 500 years, and the excellent National Maritime Museum> details that history in an engaging way. Its prize exhibits include the coat worn by Admiral Lord Nelson (1758–1805) in his final battle—bullet hole and all. The 19th-century tea clipper Cutty Sark was nearly destroyed by fire in 2007, but reopened in 2012 after a painstaking restoration. Now it’s more pristine than ever, complete with an impressive new visitor center. Greenwich Park, London's oldest royal park, is still home to fallow red deer, just as it has been since they were first introduced here for hunting by Henry VIII. The Ranger's House now houses a private art collection, next door to a beautifully manicured rose garden. Above it all is the Royal Observatory, where you can be in two hemispheres at once by standing along the Greenwich Meridian Line, before seeing a high-tech planetarium show. Toward north Greenwich, the hopelessly ambitious Millennium Dome has been successfully reborn as the O2 and now hosts major concerts and stand-up comedy gigs. More adventurous visitors can also go Up the O2 on a climbing expedition across the massive domed surface. Meanwhile, those who prefer excursions of a gentler kind may prefer to journey a couple of miles south of the borough, farther out into London’s southern suburbs, to the shamefully underappreciated Eltham Palace. Once a favorite of Henry VIII, parts of the mansion were transformed into an art deco masterpiece during the 1930s.