The Queen's Gallery is a public art gallery located at the west front of the Buckingham Palace, home of the British monarch, in London. It exhibits works of art from the Royal Collection
(i.e., those works owned by the Queen "in trust for the nation" rather
than privately) on a rotating basis; about 450 works are on display at
any one time.
The exhibit during my visit featured the works of Leonardo Da Vinci. It was entitled Anatomist as most of the works of Da Vinci were also about the anatomy of humans.
There was so much to see and everything had a mystery!