In reality, London is a collection of neighbourhoods and villages stitched together by buses, trains, trams, and of course, the Underground.
So instead of trying to you give one overarching way of thinking about London, here are some general rules of thumb (all of which have exceptions, of course): trans It's next to impossible to cover all the areas in London in any meaningful way.
If you fail to get the correct paperwork, you are breaking the law and you should expect consequences if you're caught.
Other important websites: You can find more about visa fees here: https://uk/visa-fees Or apply for one here: https://uk/apply-uk-visa In recent years, the UK has made it more difficult for individuals from outside the EU to immigrate to the UK, and public attitudes towards immigration and immigrants in general have become increasingly negative.
The classic way to think about London is either North vs South or East vs West.