The Changing of the Guard

Hello Friends, I have been in London, England where I saw the Changing of the Guard in front the Great Gate of the Buckingham Palace since Summer 1998 before next 10 years until Fall 2008,
I entered inside the Buckingham Palace where I stayed and learned inside the place for 3 hours.
Frankly, I am American Tourist and feel strange inside the Buckingham Palace. It was very interesting history and okay to me.