Vast, vibrant and truly multicultural, London is one of the world’s great cities. Located in the southeast of England, on the River Thames, it is the capital of the United Kingdom (UK) and has been the heart of its political, cultural and business life for centuries.

The now sprawling metropolis is a far cry from the scrabble of dwellings that first sprouted up to house river traders during their voyages towards the sea. It was the Romans who really kick-started the city, by establishing ‘Londinium’ as an important fortress town, guarding the Thames and protecting against any Celtic tribes trying to invade the then untamed island.

Over the centuries, London has developed and expanded, despite the many dangers that might have defeated a lesser place – the Great Plague, the Great Fire, the bitter English Civil War, a plot to blow up the Houses of Parliament, and the ‘Blitz’ during WWII.

Nowadays, the sheer scale of Greater London can be daunting at first, although it is a city that is surprisingly easy to get around, with the comprehensive and easily navigated London Underground or ‘Tube’.

The twin axis on which London rests is the Houses of Parliament to the west and the City of London to the east. The seat of government (not far from the home of the royal family) is connected to the City (the financial engine room of London and the whole of the UK) by the River Thames.

In between lie most of the tourist attractions and the busiest, liveliest different entertainment areas, such as Knightsbridge and Soho. But London’s vivacity and charm stretches far beyond the Circle Line – the Underground route that rings the inner city. Residential areas outside the city centre, such as leafy Richmond (southwest) or Hampstead (north), trendy Hoxton (east) or Notting Hill (west), each have their own beating heart.

And as the population of the greater London area pushes inexorably towards the 10 million mark, the city continues to grow and thrive. Home to 37 distinct immigrant groups, each consisting of more than 10,000 people, this is a city where some 300 languages are spoken.

This very real multiculturalism is evident on every street (and many restaurant plates) and is a key reason why people love the city. Tourists come for London’s history or London’s royal pageantry but they return for all the charms of the modern London, not least the extraordinary breadth of London’s cultural life, with world-class art galleries and theatres, buzzing nightlife, film, music, culinary and fashion scenes.

But the city skyline is the place where the London’s rapid change and optimism is most visible – the Docklands and the City (with its now famous ‘Gherkin’ tower) have shot up over the last few years.

After an enthusiastic campaign endorsed by a wealth of sporting celebrities and fervently supported by the majority of residents, London won the bid to host the Olympic Games in 2012, which will have a significant impact on the future of the city in terms of both tourism and investment.

Celebrations were, however, dampened by the atrocities of 7 July 2005, when a series of coordinated suicide bombings struck the city’s transport system during the morning rush hour, killing 56, wounding hundreds, and leaving millions in shock. London, however, has bounced back more quickly than many expected from the terrorist attacks, a testament to the resilience of its people and its enduring appeal as a tourist destination.

During summer, London’s bountiful green spaces fill up with office workers and tourists enjoying the surprisingly balmy days as café tables sprout across a multitude of pavements. During winter, the grey skies and rain can be forgotten for a while in numerous cosy pubs. But spring or autumn are probably the best seasons to visit the city, when clear crisp sunny days often illuminate London and its landmarks, old and new.