During WW2 Britain came under heavy bombing from Germany for 8 months, 1940-1941. This was called 'the Blitz' from the German word Blitzkrieg meaning 'lightning war'. London was particularly badly hit, especially at the start, being attacked every day/night of the first 57 days, except one. The objectives were the destruction of industrial targets, and to break the morale of the civilian population. But the Blitz failed, on both fronts, leaving London with extensive physical damage but a new psychological weapon, the Blitz spirit.
This interactive map shows all of the bombs dropped on London during the Blitz.
2019: Spitalfields Life posted a number of central London buildings that bear the scars of war.