London is the capital of the United Kingdom of Great Britain and Northern Ireland, the largest city in Europe and the largest economic center.
The Romans founded this city more than 2,000 years ago, and for hundreds of years, London has maintained a huge influence in the world.
As the capital of the world empire, the British Empire, London has become the world's largest city with its outstanding achievements in politics, economy, culture, science and technology.
In addition, London is the world's largest international foreign exchange market. London's daily foreign exchange trading volume is as high as 2.7 trillion US dollars, which is nearly 3 times that of the United States. That is to say, more than 40% of the world's foreign exchange transactions are conducted in London.
In the evaluation of major evaluation agencies, London is either ranked first or second among all cities in the world.