The Queen's most iconic residence in the heart of London is of course Buckingham Palace. From the staggering number of rooms through to how many windows the building has and how far the garden really stretches, discover the royal residence in numbers….
MORE: Prince Charles' revolutionary changes since taking control of the Queen's estate
WATCH: Kate Middleton reunites with old friend at Buckingham Palace's garden party
1 Post Office
The Queen doesn't have to go far to send a letter as there is a Court Post Office within the grounds, which is run by Royal Mail. A photo at the IWM shares a glimpse at what it looked like in 1941, however, we imagine it has changed greatly since then
24 meters high
The Shard and The Gherkin may tower high above the Queen’s home in the capital, but at 24 meters tall it's still taller than six double-decker buses stacked on top of each other.
The building may not be extremely tall but it is grand
19 state rooms
These are official rooms, which are suitably grand, are used when dignitaries come to visit, and they can be toured by members of the public too.
40 acres of gardens
The largest private garden in London belongs to Her Majesty, and it's pretty spectacular – there's even a lake!
MORE: The Queen's never-before-seen secret rooms at Buckingham Palace revealed
REVEALED: Why the Queen never wanted to live at Buckingham Palace
The glorious gardens are a highlight
Lots of busy work goes on at the monarch's home and that's why there are plenty of offices on-site for employees of the royal family.
188 staff bedrooms
Many roles at the palace require an overnight stay or an even longer residency which is why there are so many staff bedrooms inside the walls of the palace.
A young Prince William admiring the crowds from one of the palace's windows
Nobody is ever late for the Queen and this is ensured with plenty of timepieces around the house. It takes more than an entire day to adjust them all when the clocks change twice a year.
The grand residence has more than 700 windows and to keep them looking spotless they are cleaned every six weeks.
The fact that the palace has 775 rooms clearly indicates the sheer size of the grand building.
The palace has 40,000 lights in total
Guests munch through a grand total of 20,000 sandwiches at one of the Queen's annual garden parties. They must be good!
RELATED: The Queen's breathtaking country home belongs on a holiday postcard
MORE: The Queen's staff have to follow surprising rule at Buckingham Palace home
The monarch's home has undergone painstaking renovations
You can only imagine the electricity bill the monarch must rack up with 40,000 lights throughout the residence.
Thanks to the sheer scale of the palace, redecorating doesn't come cheap and considering the building required a rewire and extensive modernisations recently, the current changes are looking to be well over £300 million.
Like this story? Sign up to our special Queen’s Platinum Jubilee newsletter to get latest news, photos and videos related to Her Majesty's special milestone.