The tree was sourced from the nearby Windsor Great Park and will be replanted after the Christmas display closes.

The Queen Mary's Dolls' House in Windsor Castle was designed between 1921 and 1924 as a "gift to the nation" from Queen Mary following World War I.

The doll house — often called the largest and most famous in the world — replicates an aristocratic Edwardian home and has electricity, working elevators, and running water.

To commemorate its 100th anniversary, the doll house has been decorated for Christmas for the first time with a miniature 1920s-style Christmas tree and garlands.

The staircase leads to the State Apartments, which are open for the public to visit.

A Nordmann Fir Christmas tree was erected in the crimson drawing room, which the royal family uses for official entertaining.

Buckingham Palace is decorated — but there aren't any pictures available.

A palace spokesperson told Business Insider that imagery of the interior decoration hasn't been released since the palace is closed to the public.

They said there were Christmas trees, garlands, and other festive flowers in the palace, the official London residence of the royals.

The photo above shows an event on December 11 at the palace, without any obvious decoration.

The palace is undergoing a £369 million ($466 million) refurbishment, which will see the royal household closed to state visits until 2027.

A 15-foot-high tree was erected in the Great Gallery, the largest room in the palace.

The room is adorned with portraits of legendary kings of Scotland.

The Throne Room is used for receptions, state banquets, and other formal events.

The tree was decorated predominantly with red baubles and ribbons.

Staff members can be seen adding the finishing touches to the display.

The London residence, which remains the primary residence of King Charles III and his wife, Queen Camilla, also got a festive makeover in the run up to Christmas.

The Queen welcomed children to Clarence House to help decorate the Christmas tree in the household's library.

Highgrove is in the English countryside some 85 miles west of London.

The two nutcrackers, which stand at over 10 feet tall, have been placed outside the Orchard Room, the estate's dedicated entertaining space.

The tree is in the Ante Room and will be visible to the public who visit Highgrove's gardens during the festive period.

Staff members can be seen decorating the tree beyond the windows.

Staff at Highgrove Gardens can be seen preparing place settings in the garden room.

If you're looking for a truly medieval-feeling city in the UK, you can't choose a better spot than the Scottish capital, Edinburgh.

I was mesmerized by the city's stunning mix of architectural styles, which makes the buildings appear larger than life. Most notably, Edinburgh Castle towers over the city and is visible from many different spots in town.

Edinburgh is also a treasure trove of history, whether it's Mary King's Close, a preserved 17th-century alley, or a whiskey tour in which I learned about the distinctive regional varieties of Scotch.

When the colder weather started getting to me, I was able to find a surprising number of hot-chocolate shops. I found that hot cocoa paired with a doughnut from one of the countless bakeries around town made for the perfect afternoon snack.

Amsterdam has a reputation as a party city, particularly its proclivity for marijuana and the Red Light District. Though Amsterdam is definitely a good place to have a great time, there is so much more to the city.

During my stay, I tried to avoid the tourist hot spots, favoring the local neighborhoods instead. One particularly enchanting walk along the canals led me to Foodhallen, a lively food market where I got to enjoy sushi, a corndog, and the Dutch snack of bitterballen — which can best be described as a deep-fried stew ball.

When I did venture to busier places, it was to tour the art and history museums. My favorites were the Van Gogh Museum and the Anne Frank House, which were each powerful and moving in their own right.

I also enjoyed how much the city's layout differed from the other European cities I visited. Bikes and boats reign supreme, which make for lovely ways to explore the city.

Zurich is a gorgeous city, and sitting on the banks of the lake with a plate of currywurst was a top-tier European experience for me.

Though I found the city to be expensive compared with the other places I visited, the main reason I wouldn't return is because of Zurich's enviable neighbors: the villages of the Swiss Alps.

In just a few hours, you can leave the urban environment and arrive in towns like Wengen and Mürren, which look straight out of a storybook.

One of the main reasons I wanted to visit the capital of Wales was to tour Cardiff Castle, and the complex didn't disappoint. I learned about 2,000 years of history, from ancient ruling families to an underground bunker used in World War II.

But in my opinion, the rest of Cardiff wasn't quite as impressive.

Though I enjoyed the Victorian and Edwardian arcades (glass-roofed alleys with various shops), the city center felt a bit grungier than the others I visited because of some loose trash lying around. I also felt as if there weren't a ton of other activities to do in the vicinity.

But with 400 castles scattered throughout the country, I'll be sure to explore the more remote parts of Wales on my next visit.