Amazon) have been found, and even Egyptian-style interpretations of Roman gods and vice versa. Most of these have been taken to Rome for preservation and restoration, and can be seen at the Musei Capitolini or the Musei Vaticani. However, many were also excavated in the 18th century by antiquities dealers such as Piranesi and Gavin Hamilton to sell to Grand Tourists and antiquarians such as Charles Towneley, and so are in major antiquities collections elsewhere in Europe and North America. Artworks found in the villa include: Statue of Osiris-Antinous, Vatican Museum Discobolus Dove Basin mosaic, copy of a famous Hellenistic mosaic, Capitoline Museums Diana of Versailles, Louvre Crouching Venus Capitoline Antinous Young Centaur and Old Centaur (Capitoline versions) Present-day significance The United Nations Educational, Scientific and Cultural Organization (UNESCO) designated Hadrian's Villa as a World Heritage Site in 1999. The designation specified the boundaries of the site and created a buffer zone around it in which no new construction was permitted. In 2011, the communal government of Tivoli announced plans, later cancelled, to build a waste dump in the vicinity of the villa and approved the construction of public housing on 120,000 sq. meters within the buffer zone. At its 36th Annual Meeting, UNESCO formally addressed these encroachments on the site. While they commended the Italian government for its decision to abandon the construction of a waste dump in the Corcolle area, the committee requested the government “to inform the World Heritage Centre in due time about any major development project planned in the buffer zone of the property, including the housing development at Comprensorio di Ponte Lucano, for which a Heritage Impact Assessment should be included, in accordance with Paragraph 172 of the Operational Guidelines, before any irreversible commitment is made.” UNESCO also requested “the State Party to submit . . . an updated report on the state of conservation of the property,” by February 2014, reflecting concerns over the deterioration of the exposed ruins. The reasons for making the villa a World Heritage Site are: it is a masterpiece that brings together the material culture of the Mediterranean world, it inspired the Renaissance and baroque period, it inspires the modern world as well, and the villa is an exceptional survival of the early Roman Empire. In 2016, as part of the reorganization of the Ministero per i Beni e le Attività Culturali, Hadrian's Villa, the neighboring Villa d’Este