Okay, so obviously nuclear weapons proved to be a threat that would possibly destroy the world. The Soviet Union and the United States build up a stockpile of nuclear weapons and used the fact that the world may be destroyed to keep the other country at bay.
Death penalty or death penalty schemes
I'm not sure what you mean by "historically", but there are many key features of London:
Big Ben
Buckingham Palace
the Thames River
London Bridge
London Eye
Trafalgar Square
Hyde Park
Westminster Abbey
the Globe Theater
