Most of the museums in London are free (including the museum of London).
Get a job, and pay your own way.
The National Gallery and the National Portrait Gallery on Trafalgar Square in London has a few famous paintings. There's also the Tate Britain and the Tate Modern. All of these museums are free to enter.
It depends what you mean by "protection". Visitors are entitled to the normal protection of the law. Unlike many/most other countries, they are also entitled to free emergency health care.
No, sorry!
Yes, definitely. There was the Jews Free School in London England , probably on the east side.
Free
It does depend what you enjoy; the London Eye is quite a good start as you get a overview of the city. There are bus tours of the city which will give a feel of the history. The museums are excellent - world class and mostly free! London Zoo is often called the best zoo in the world. Have fun!
All of the Smithsonian Museums are free.
There are various websites that will have basic information but they all charge a fee.
Have you thought about flat swap? Or surf London free press. Like 'Friday Ad', ' 'Loot', 'Time out', or 'Metro'.
It's free - but you have to study for two to three years to do 'The Knowledge' before you will be allowed to 'ply for hire'.