The city's layout is determined by a web of canals radiating out from an historical core to loop right round the centre. These planned, seventeenth-century extensions to the medieval town make for a uniquely elegant urban environment, with tall gabled houses reflected in their black-green waters. This is the city at its most beguiling, a world away from the traffic and noise of many other European city centres, and it has made Amsterdam one of the continent's most popular short-haul destinations. These charms are supplemented by a string of first-rate attractions, most notably the Anne Frankhuis, where the young Jewish diarist hid away during the German occupation of World War II, the Rijksmuseum, with its wonderful collection of Dutch paintings, including several of Rembrandt's finest works, and the peerless Vincent van Gogh Museum, with the world's largest collection of the artist's work.
However, it's Amsterdam's population and politics that constitute its most enduring characteristics. Celebrated during the 1960s and 1970s for its radical permissiveness, the city mellowed only marginally during the 1980s, and, despite the gentrification of the last twenty years, it retains a laid-back feel. That said, it is far from being as cosmopolitan a city as, say, London or Paris: despite the huge numbers of immigrants from the former colonies in Surinam and Indonesia, as well as Morocco and Turkey - to name but a few - almost all live and work outside the centre and can seem almost invisible to the casual visitor. Indeed, there is an ethnic and social homogeneity in the city centre that seems to run counter to everything you may have heard of Dutch integration.