it never had been damaged at all
The Tower of London is still classified as a Royal Palace but hasn't been used as such for centuries.
It has always been said that if the ravens should ever leave the Tower of London it would cause the fall of The British Empire.
yes
There have been fortifications on the site since pre-historic times, but construction of the Tower as it appears today was started soon after the Norman invasion of 1066 and has been going on ever since.
It started in the 11th century and has continued ever since.
Yes. It has been damaged.
Construction on Tower Bridge in London began in 1886 and it was completed in 1894. Tower Bridge in Sacramento was finished in 1935.
The legend states that if the ravens ever leave the Tower of London, the "crown" (i.e. the British Monarchy) and country will fall.
Before they had proper sewage disposal, it probably did smell.
No
They have not yet gone to the Tower of London nor have they yet made any plans to go there, However, they have stated that it is a possibility that they shall visit there in the future.