A royal carriage. A similar one will convey Xi and the queen to the palace after a welcome ceremony performed by royal troops. [Photo/CRI]

Buckingham Palace

Having served as the official London residence of Britain's sovereigns since 1837, Buckingham Palace today is the administrative headquarters of the monarch.

State visits traditionally occur during the first and second half of each year, although more than 60,000 people on average visit the palace annually.