Day 1 Rotterdam, Netherlands

Rotterdam is a city that's a long way removed from most people's stereotypical notion of the Netherlands. There are few, if any, canals to be found here nor are there any quaint windmills. There is, however, a thriving modern city which is one of the busiest ports in the entire world.

Day 3 Cork, Ireland

Cork City received its first charter in 1185 from Prince John of Norman England, and it takes its name from the Irish word corcaigh, meaning "marshy place." The original 6th-century settlement was spread over 13 small islands in the River Lee. Major development occurred during the 17th and 18th centuries with the expansion of the butter trade, and many attractive Georgian-design buildings with wide bowfront windows were constructed during this time. As late as 1770 Cork's present-day main streets—Grand Parade, Patrick Street, and the South Mall—were submerged under the Lee. Around 1800, when the Lee was partially dammed, the river divided into two streams that now flow through the city, leaving the main business and commercial center on an island, not unlike Paris's Île de la Cité. As a result, the city has a number of bridges and quays, which, although initially confusing, add greatly to the port's unique character. Cork can be very "Irish" (hurling, Gaelic football, televised plowing contests, music pubs, and peat smoke). But depending on what part of town you're in, Cork can also be distinctly un-Irish—the sort of place where hippies, gays, and farmers drink at the same pub.

Day 4 Dublin, Ireland

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.

Day 5 Belfast, Northern Ireland

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.

Day 7 Reykjavík, Iceland

Sprawling Reykjavík, the nation's nerve center and government seat, is home to half the island's population. On a bay overlooked by proud Mt. Esja (pronounced eh-shyuh), with its ever-changing hues, Reykjavík presents a colorful sight, its concrete houses painted in light colors and topped by vibrant red, blue, and green roofs. In contrast to the almost treeless countryside, Reykjavík has many tall, native birches, rowans, and willows, as well as imported aspen, pines, and spruces.Reykjavík's name comes from the Icelandic words for smoke, reykur, and bay, vík. In AD 874, Norseman Ingólfur Arnarson saw Iceland rising out of the misty sea and came ashore at a bay eerily shrouded with plumes of steam from nearby hot springs. Today most of the houses in Reykjavík are heated by near-boiling water from the hot springs. Natural heating avoids air pollution; there's no smoke around. You may notice, however, that the hot water brings a slight sulfur smell to the bathroom.Prices are easily on a par with other major European cities. A practical option is to purchase a Reykjavík City Card at the Tourist Information Center or at the Reykjavík Youth Hostel. This card permits unlimited bus usage and admission to any of the city's seven pools, the Family Park and Zoo, and city museums. The cards are valid for one (ISK 3,300), two (ISK 4,400), or three days (ISK 4,900), and they pay for themselves after three or four uses a day. Even lacking the City Card, paying admission (ISK 500, or ISK 250 for seniors and people with disabilities) to one of the city art museums (Hafnarhús, Kjarvalsstaðir, or Ásmundarsafn) gets you free same-day admission to the other two.

Day 8 Reykjavík, Iceland

Sprawling Reykjavík, the nation's nerve center and government seat, is home to half the island's population. On a bay overlooked by proud Mt. Esja (pronounced eh-shyuh), with its ever-changing hues, Reykjavík presents a colorful sight, its concrete houses painted in light colors and topped by vibrant red, blue, and green roofs. In contrast to the almost treeless countryside, Reykjavík has many tall, native birches, rowans, and willows, as well as imported aspen, pines, and spruces.Reykjavík's name comes from the Icelandic words for smoke, reykur, and bay, vík. In AD 874, Norseman Ingólfur Arnarson saw Iceland rising out of the misty sea and came ashore at a bay eerily shrouded with plumes of steam from nearby hot springs. Today most of the houses in Reykjavík are heated by near-boiling water from the hot springs. Natural heating avoids air pollution; there's no smoke around. You may notice, however, that the hot water brings a slight sulfur smell to the bathroom.Prices are easily on a par with other major European cities. A practical option is to purchase a Reykjavík City Card at the Tourist Information Center or at the Reykjavík Youth Hostel. This card permits unlimited bus usage and admission to any of the city's seven pools, the Family Park and Zoo, and city museums. The cards are valid for one (ISK 3,300), two (ISK 4,400), or three days (ISK 4,900), and they pay for themselves after three or four uses a day. Even lacking the City Card, paying admission (ISK 500, or ISK 250 for seniors and people with disabilities) to one of the city art museums (Hafnarhús, Kjarvalsstaðir, or Ásmundarsafn) gets you free same-day admission to the other two.

Day 9 Grundarfjørdur, Iceland

Day 12 Qaqortoq (Julianehaab), Greenland

The largest town in southern Greenland, Qaqortoq has been inhabited since prehistoric times. Upon arrival in this charming southern Greenland enclave, it's easy to see why. Qaqortoq rises quite steeply over the fjord system around the city, offering breath-taking panoramic vistas of the surrounding mountains, deep, blue sea, Lake Tasersuag, icebergs in the bay, and pastoral backcountry. Although the earliest signs of ancient civilization in Qaqortoq date back 4,300 years, Qaqortoq is known to have been inhabited by Norse and Inuit settlers in the 10th and 12th centuries, and the present-day town was founded in 1774. In the years since, Qaqortoq has evolved into a seaport and trading hub for fish and shrimp processing, tanning, fur production, and ship maintenance and repair.

Day 14 Saint-Anthony, Newfoundland and Labrador, Canada

Day 15 Saint-John's, Newfoundland and Labrador, Canada

Old meets new in the province's capital (metro-area population a little more than 200,000), with modern office buildings surrounded by heritage shops and colorful row houses. St. John's mixes English and Irish influences, Victorian architecture and modern convenience, and traditional music and rock and roll into a heady brew. The arts scene is lively, but overall the city moves at a relaxed pace.For centuries, Newfoundland was the largest supplier of salt cod in the world, and St. John's Harbour was the center of the trade. As early as 1627, the merchants of Water Street—then known as the Lower Path—were doing a thriving business buying fish, selling goods, and supplying alcohol to soldiers and sailors.

Day 17 Halifax, Nova Scotia, Canada

Surrounded by natural treasures and glorious seascapes, Halifax is an attractive and vibrant hub with noteworthy historic and modern architecture, great dining and shopping, and a lively nightlife and festival scene. The old city manages to feel both hip and historic. Previous generations had the foresight to preserve the cultural and architectural integrity of the city, yet students from five local universities keep it lively and current. It's a perfect starting point to any tour of the Atlantic provinces, but even if you don't venture beyond its boundaries, you will get a real taste of the region.It was Halifax's natural harbor—the second largest in the world after Sydney, Australia's—that first drew the British here in 1749, and today most major sites are conveniently located either along it or on the Citadel-crowned hill overlooking it. That's good news for visitors because this city actually covers quite a bit of ground.Since amalgamating with Dartmouth (directly across the harbor) and several suburbs in 1996, Halifax has been absorbed into the Halifax Regional Municipality, and the HRM, as it is known, has around 415,000 residents. That may not sound like a lot by U.S. standards, but it makes Nova Scotia's capital the most significant Canadian urban center east of Montréal.There's easy access to the water, and despite being the focal point of a busy commercial port, Halifax Harbour doubles as a playground, with one of the world's longest downtown boardwalks. It's a place where container ships, commuter ferries, cruise ships, and tour boats compete for space, and where workaday tugs and fishing vessels tie up beside glitzy yachts. Like Halifax as a whole, the harbor represents a blend of the traditional and the contemporary.

Day 19 Boston, Massachusetts, United States

There's history and culture around every bend in Boston—skyscrapers nestle next to historic hotels while modern marketplaces line the antique cobblestone streets. But to Bostonians, living in a city that blends yesterday and today is just another day in beloved Beantown.