basalt was lost at an earlier stage. An unusual folly is the Roman style viewing tower which stands on the hill overlooking the duck pond. This started out as an observation tower on the roof of the original house. Later, the tower was removed during the extensive refurbishment of St. Annes' house in about 1873 and placed in its current location. It is modelled on the Tomb of the Julii at Glanum near St. Rémy in France. Many of the follies had reached a neglected condition. For example, the Roman style viewing tower was graffiti-covered, had been closed for many years and became completely hidden by mature trees (it could only be revealed, and the view restored, by felling trees, which would be detrimental to the environment of the park, so an alternative proposal was that the tower be moved instead to the site of the old rockery, near the junction of James Larkin Road and Mount Prospect Avenue). In 2010, Dublin City Council, with the support of the Heritage Council, commissioned a strategy by conservation architects (Shaffrey and Associates) for the long-term conservation of these follies, and it was planned to implement this on a phased basis. Restoration works began in 2017. Graffiti remains an ongoing issue. Buildings The elaborate Tudor red brick Ardilaun stables were designed by George Coppinger Ashlin, also the architect of All Saints Church at Raheny. The Red Stables as they are called, were renovated in the 1990s by Dublin City Council as the Red Stables Art Centre, with public facilities such as artists' residences upstairs, an exhibition space and a café, Olive's Room. Previous artists-in-residence include Niall de Buitléar, Tadhg McSweeney, and Paul McKinley. A Farmers' Market is held in the courtyard at weekends. This scheme has won international architecture awards. Gardens The Rose Garden In 1975, St Anne's Rose Garden was opened to the public. In 1980 it was given a Civic Award by Bord Failte and the Irish Town Planning Institute, and since 1981 it has been a centre for International Rose Trials. Its development led to the annual Rose Festival, now a popular event on the summer calendar for Dublin gardeners and families every July. Walled garden complex The walled garden, including a fruit garden added to the estate by Bishop Plunkett, holds a plant nursery for the Parks Department. Thousands of bedding plants, shrubs, trees, and floral tubs are produced