Buckingham Palace is the Queen's official residence. Buckingham Palace is open to the public between August and September in Summers when the Queen is not in residence. In the Buckingham Palace tour you get to have an inside look of the palace and also see the guards changing. There are special royal tours too with afternoon tea.
How to Reach Buckingham Palace in London?
London Victoria or London Charing Cross. For details, Visit http://www.nationalrail.co.uk/
Victoria, Green Park, St. James's Park and Hyde Park Corner. For details go to https://tfl.gov.uk/
By coach / bus
Bus numbers 11, 211, C1 and C10 stop on Buckingham Palace Road. Victoria Coach Station is a 10-minute walk from the Palace.