All through London there are survivals of old gardens, which are still either quiet and concealed, or thrown open to the public. Such are the grounds of the Charterhouse, of Chelsea Hospital, or of the Foundling Hospital, and of other old-world haunts of peace. The rarest thing in London are the private gardens, yet they too go to make up the aggregate lungs of the city. Out of a total of upwards of 75,000 acres there are in round numbers some 6000 acres of parks, commons, squares, and open spaces in London: of these a little over 4000 acres are in the hands of the London County Council. Besides this it administers nearly 900 acres outside the county. The City of London owns large forest tracts, commons, and parks beyond the limit of the County of London-Epping, Burnham Beeches, Highgate Wood, and parks in West Ham, Kilburn, &c.-altogether nearly 6500 acres.