By the 11th century, Copenhagen was already an important trading and fishing centre and today you will find an attractive city which, although the largest in Scandinavia, has managed to retain its low-level skyline. Discover some of the famous attractions including Gefion Fountain and Amalienborg Palace, perhaps cruise the city’s waterways, visit Rosenborg Castle or explore the medieval fishing village of Dragoer. Once the home of Hans Christian Andersen, Copenhagen features many reminders of its fairytale heritage and lives up to the reputation immortalised in the famous song ‘Wonderful Copenhagen’.

Gotland is Sweden's main holiday island, a place of ancient history, a relaxed summer-party vibe, wide sandy beaches, and wild cliff formations called raukar (the remnants of reefs formed more than 400 million years ago). Measuring 125 km (78 miles) long and 52 km (32 miles) at its widest point, Gotland is where Swedish sheep farming has its home. In its charming glades, 35 varieties of wild orchids thrive, attracting botanists from all over the world.

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.

Known as the gateway of England, Dover welcomes millions of visitors from all over the globe each year in its role as the ferry capital of the world and the second busiest cruise port in the UK. The White Cliffs Country has a rich heritage. Within the walls of the town’s iconic castle, over 2,000 years of history waits to be explored, whilst the town’s museum is home to the Dover Bronze Age Boat, the world’s oldest known seagoing vessel. The town’s cliffs that are a welcome sight for today's cross-channel travellers also served as the control centre for the Dunkirk evacuation in 1940.

Cobblestone streets, blooming floral displays, and tiny churches welcome you to this wonderfully pretty harbour. The town of St Peter Port is as pretty as they come, with glowing flower displays painting practically every street corner and window-ledge with colour. As the capital, and main port of Guernsey, St Peter Port puts all of the island’s gorgeous beaches, wonderful history and inspiring stories at your fingertips. Feel the gut punch of the midday gun firing at Castle Cornet, which stands guard over one of the world's prettiest ports. This 800-year-old, Medieval castle offers staggering views of the harbour from its imposing, craggy island location, and you can look out across to the looming shorelines of the other Channel Islands from its weathered battlements. With four well-tended gardens, and five museums offering a rich overview of Guernsey's history, you’ll want to leave a few hours aside to explore the many treasures that lie within the castle’s walls.

Best known as the port from which Sir Francis Drake and the port which the Pilgrim Fathers set sail from, Plymouth is awash with history. Walk down its cobbled streets, step back in time and discover the historical landmarks and sites.

Once a northern defense post against Irish raiders, Holyhead later became best known as a ferry port for Ireland. The dockside bustle is not matched by the town, however, which maintains just a small population. Nonetheless, thousands of years of settlement have given Holyhead rich historical ruins to explore, with more in the surrounding hiking friendly landscape.

Dublin is making a comeback. The decade-long "Celtic Tiger" boom era was quickly followed by the Great Recession, but The Recovery has finally taken a precarious hold. For visitors, this newer and wiser Dublin has become one of western Europe's most popular and delightful urban destinations. Whether or not you're out to enjoy the old or new Dublin, you'll find it a colossally entertaining city, all the more astonishing considering its intimate size.It is ironic and telling that James Joyce chose Dublin as the setting for his famous Ulysses, Dubliners, and A Portrait of the Artist as a Young Man because it was a "center of paralysis" where nothing much ever changed. Which only proves that even the greats get it wrong sometimes. Indeed, if Joyce were to return to his once-genteel hometown today—disappointed with the city's provincial outlook, he left it in 1902 at the age of 20—and take a quasi-Homeric odyssey through the city (as he so famously does in Ulysses), would he even recognize Dublin as his "Dear Dirty Dumpling, foostherfather of fingalls and dotthergills"?For instance, what would he make of Temple Bar—the city's erstwhile down-at-the-heels neighborhood, now crammed with cafés and trendy hotels and suffused with a nonstop, international-party atmosphere? Or the simple sophistication of the open-air restaurants of the tiny Italian Quarter (named Quartier Bloom after his own creation), complete with sultry tango lessons? Or of the hot–cool Irishness, where every aspect of Celtic culture results in sold-out theaters, from Once, the cult indie movie and Broadway hit, to Riverdance, the old Irish mass-jig recast as a Las Vegas extravaganza? Plus, the resurrected Joyce might be stirred by the songs of Hozier, fired up by the sultry acting of Michael Fassbender, and moved by the award-winning novels of Colum McCann. As for Ireland's capital, it's packed with elegant shops and hotels, theaters, galleries, coffeehouses, and a stunning variety of new, creative little restaurants can be found on almost every street in Dublin, transforming the provincial city that suffocated Joyce into a place almost as cosmopolitan as the Paris to which he fled. And the locals are a hell of a lot more fun! Now that the economy has finally turned a corner, Dublin citizens can cast a cool eye over the last 20 crazy years. Some argue that the boomtown transformation of their heretofore-tranquil city has permanently affected its spirit and character. These skeptics (skepticism long being a favorite pastime in the capital city) await the outcome of "Dublin: The Sequel," and their greatest fear is the possibility that the tattered old lady on the Liffey has become a little less unique, a little more like everywhere else.Oh ye of little faith: the rare ole gem that is Dublin is far from buried. The fundamentals—the Georgian elegance of Merrion Square, the Norman drama of Christ Church Cathedral, the foamy pint at an atmospheric pub—are still on hand to gratify. Most of all, there are the locals themselves: the nod and grin when you catch their eye on the street, the eagerness to hear half your life story before they tell you all of theirs, and their paradoxically dark but warm sense of humor. It's expected that 2016 will be an extra-special year in the capital, as centenary celebrations of the fateful 1916 Easter Rising will dominate much of the cultural calendar.

The Isle of Man, situated in the Irish Sea off the west coast of England, is a mountainous, cliff-fringed island and one of Britain’s most beautiful spots. Measuring just 30 miles by 13 miles, the Isle of Man remains semi-autonomous. With its own postage stamps, laws, currency, and the Court of Tynwald (the world’s oldest democratic parliament), the Isle of Man is rich with history and lore.Inhabited from Neolithic times, the island became a refuge for Irish missionaries after the 5th Century. Norsemen took the island during the 9th Century and sold it to Scotland in 1266. However, since the 14th Century, it has been held by England. Manx, the indigenous Celtic language, is still spoken by a small minority. The Isle of Man has no income tax, which has encouraged many Britains to regard the island as a refuge. Otherwise, it is populated by Gaelic farmers, fishermen, and the famous tailless manx cats. The varied landscape features austere moorlands and wooded glens, interspersed by fine castles, narrow-gauge railways, and scores of standing stones with Celtic crosses. The hilly terrain rises to a height of 2,036 feet at Mount Snaefell, which dominates the center of the island.

Portrush is adjacent to the stunning North Antrim coastline. Here lies the medieval Dunluce Castle ruins. Perched picturesquely at the edge of a rocky outcropping high above the sea, the castle is dramatically surrounded by terrifyingly steep drops, which the early Christians and Vikings would have considered a very important security feature. The castle and surrounding areas have been frequently used for the filming of “Game of Thrones”. Another attraction reached from Portrush is the Giant’s Causeway -40,000 hexagonal basalt columns that descend in a kind of pathway to the sea. Formed over 50 million years ago, visitors have marvelled at its majesty and mystery for centuries, and UNESCO has recognised this site with World Heritage status.

Before English and Scottish settlers arrived in the 1600s, Belfast was a tiny village called Béal Feirste ("sandbank ford") belonging to Ulster's ancient O'Neill clan. With the advent of the Plantation period (when settlers arrived in the 1600s), Sir Arthur Chichester, from Devon in southwestern England, received the city from the English Crown, and his son was made Earl of Donegall. Huguenots fleeing persecution from France settled near here, bringing their valuable linen-work skills. In the 18th century, Belfast underwent a phenomenal expansion—its population doubled every 10 years, despite an ever-present sectarian divide. Although the Anglican gentry despised the Presbyterian artisans—who, in turn, distrusted the native Catholics—Belfast's growth continued at a dizzying speed. The city was a great Victorian success story, an industrial boomtown whose prosperity was built on trade, especially linen and shipbuilding. Famously (or infamously), the Titanic was built here, giving Belfast, for a time, the nickname "Titanic Town." Having laid the foundation stone of the city's university in 1845, Queen Victoria returned to Belfast in 1849 (she is recalled in the names of buildings, streets, bars, monuments, and other places around the city), and in the same year, the university opened under the name Queen's College. Nearly 40 years later, in 1888, Victoria granted Belfast its city charter. Today its population is nearly 300,000, tourist numbers have increased, and this dramatically transformed city is enjoying an unparalleled renaissance.This is all a welcome change from the period when news about Belfast meant reports about "the Troubles." Since the 1994 ceasefire, Northern Ireland's capital city has benefited from major hotel investment, gentrified quaysides (or strands), a sophisticated new performing arts center, and major initiatives to boost tourism. Although the 1996 bombing of offices at Canary Wharf in London disrupted the 1994 peace agreement, the ceasefire was officially reestablished on July 20, 1997, and this embattled city began its quest for a newfound identity.Since 2008, the city has restored all its major public buildings such as museums, churches, theaters, City Hall, Ulster Hall—and even the glorious Crown Bar—spending millions of pounds on its built heritage. A gaol that at the height of the Troubles held some of the most notorious murderers involved in paramilitary violence is now a major visitor attraction.Belfast's city center is made up of three roughly contiguous areas that are easy to navigate on foot. From the south end to the north, it's about an hour's leisurely walk.