It’s easy to lose yourself in Istanbul's grandiose history, but modern Istanbul is a simmering metropolis, well worth a visit in its own right. The shopping is world-class and the nightlife pulsates around not one but several districts. Even though Istanbul is no longer the capital, it’s still the country’s business and cultural centre, still the city where new trends are created.

Long known for its old-world charm, from the historic Faneuil Hall to the Freedom Trail that celebrates Boston’s preeminent role in the American Revolution, Boston has come a long way towards staking its claim in the 21st century. With the completion of the “Big Dig” that buried Boston’s vast network of highways underground, Boston has hit the new century running. Attractions span beautiful public libraries, fascinating museums and plenty of sports. Boston is destined to grow ever more beautiful as more and more of the ungainly elevated highways are replaced with lush parks.

Located in the Canterbury region, Christchurch — the largest city on the South Island — is a compact city, easy enough to explore on foot or bicycle, with stunning nature never more than a stone's throw away. In the wake of the 2010-2011 earthquakes, Christchurch has re-emerged brighter and livelier than ever. It's a city where creativity and innovation run wild, and the hospitality and arts scenes are buzzing with energy. Truly, it's a unique destination that's positively thriving.

Moscow is a city of contrasts where the bohemian and the glamorous merge in an idiosyncratic fusion – do not be surprised to find a golden-domed 16th-century church next to an ultra-modern glass skyscraper or a Soviet blockhouse. Here, salty fish eggs (caviar) are washed down with bubbly champagne, and worn-out commuters travel by the elaborately decorated, elegant metro, one of the city's main attractions.

Think big in Washington–as soon as you arrive in D.C., you’ll be knocked over by the scale of the place. America's capital wants you to know where you are, and the city goes all out to impress in terms of grandeur and size. Drama and scandal bubble under the surface, while the streets are abuzz with hip and happening events, museums, restaurants, and clubs around every corner. The principles of Equality, Justice, Life, and Liberty are still upheld, but D.C. is, above all, a trendy and international town.