The Wellington Barracks were built by Sir Francis Smith and Philip Hardwick in 1838, and since that time, it has been the home of the most senior regiment of the British infantry, the Grenadier Guards. Lovely chaps. The length of the barracks runs between Queen Anne's Gate and Buckingham Gate. The building is also home to the Royal Military Chapel, which was destroyed in 1844 during a German blitz on London. It was rebuilt in the 1960s and is at present the only Military Chapel remaining in all of London.