Istanbul

A geographic and metaphoric melding of East and West, Istanbul is the world's only city covering two continents. The Bosporus runs through the centre; Europe lies to the west, Asia to the east.

For nearly 2,000 years, the ideally situated metropolis has been the keystone of some of the world's great empires, serving as the capital city for the Romans (under the name Constantinople, as noted by the informative "They Might Be Giants" tune), Byzantines and Ottomans.

Inside the sprawling city, the secular and the sacred mingle -- minarets with nightclubs and dusty prayer rugs with designer digs. The idea of Istanbul as a collision between East and West reveals itself immediately, with monumental churches cum mosques (the Hagia Sophia), Roman ruins (the Hippodrome, where horse and chariot races were held in Roman times) and unadulterated symbols of consumerism (the Grand Bazaar with its thousands of shops).

Even if these iconic attractions are what draw many of its tourists to this vast (second only in size to Shanghai) city of 17 million inhabitants, visitors, dutifully plodding through them, may easily miss what makes this city one of the world's most vibrant right now.

Increasingly prosperous, Istanbul has exciting neighbourhoods, upscale shops (not just the usual international brands like Prada but also fashion designs by Turkish clothiers) and a thriving restaurant scene that ranges from classic fare to newer, Mediterranean-infused interpretations of local standards. Its Museum of Modern Art -- handily located pierside, where ships dock -- is new and offers both rotating internationally-minded exhibitions and works from Turkish artists.

Istanbul is increasingly popular as a port of embarkation (or disembarkation) for a range of itineraries, from the Black Sea and Eastern Mediterranean Greek Isles trips to the migration, twice a year, of ships between Europe and Asia. You can find as many as six ships a day docking there. This noisy place, in which the magical call to prayer several times a day manages to overcome the sound of honking cars, is a great place to add a pre- or post-cruise stay.