The Tower of London is a historic castle located on the north bank of the River Thames in central London.
Lambeth Palace is the official London residence of the Archbishop of Canterbury.
Spencer House is an 18th-century mansion situated in the heart of St. James's, London.
Greenwich Castle was a small moated building in Greenwich Park.
Bruce Castle is a Grade I listed 16th-century manor house in Lordship Lane, Tottenham, London.
Severndroog Castle is a picturesque Gothic-style folly.
Fulham Palace is a Grade I listed building with medieval origins and was the principal residence of the Bishop of London.