Built in 1703 for the Duke of Buckingham, Buckingham Palace replaced St James's Palace as the monarch's official London residence in 1837. Queen Elizabeth II divides her time between here, Windsor Castle and, in summer, Balmoral Castle in Scotland. If she’s in residence, the square yellow, red and blue Royal Standard is flown; if not, it's the Union Flag. The 19 lavishly furnished State Rooms are open to visitors when Her Majesty is on vacation from mid-July to September.
Admission includes entry to a themed special exhibition (royal couture during the Queen's reign, growing up at the palace etc) in the enormous Ballroom, built between 1853 and 1855, and these displays are often the main reason for a visit. The Throne Room is rather anticlimactic, with his-and-her pink chairs monogrammed "ER" and "P".
If the Royal Standard is flying above Buckingham Palace, it means the Queen is there © Tetra Images / Getty Images
Entry is by timed ticket, which is best booked online in advance. The self-guided tour, using excellent audio-guide commentary, takes about two hours. Security is airport-style and unsurprisingly strict. Large bags are not permitted inside. Ask staff to stamp your ticket before you leave for free access for a year.
The State Rooms are fully accessible, but it's a long tour involving lots of standing and with few places to sit down. Have a snack and use the toilet before you enter. There's a cafe and toilets but only at the end of the tour, and it's not easy to get there and then back to where you left off.
The closest Underground stations to Buckingham Palace are Green Park on the Piccadilly, Victoria and Jubilee Lines and St James's Park on the District and Circle Lines.
© David Steele / Shutterstock