Escher in the Palace one's eyes will be tricked by multiple interactive displays. In the rooms of the museum are fifteen chandeliers made by the Rotterdam artist, Hans van Bentem. The artist designed these especially for the museum, with some references to the work of Escher and the Palace. In the ballroom, a star chandelier is endlessly reflected in the two mirrors. In other rooms there are chandeliers such as a shark, a skull, spiders, and a sea horse. The parquet floor in the Palace was designed in 1991/92 by the American minimal artist Donald Judd on the occasion of the opening of the
Garden at Buckingham Palace south-west and the Royal Mews, Queen's Gallery, and Buckingham Palace to the south and east. The planting is varied and exotic, with a mulberry tree dating back to the time of James I of England. Notable features include a large 19th-century lake which was once recently graced by a flock of flamingoes, and the Waterloo Vase. In the garden there is a summerhouse, a helicopter pad, and a tennis court. Unlike the nearby Royal Parks of London, Buckingham Palace Garden is not usually open to the public. However, when Buckingham Palace is open during August and September, visitors have access