Follies began as decorative accents on the great estates of the late 16th and early 17th centuries but they flourished especially in the two centuries which followed. Many estates were blessed with picturesque ruins of monastic houses and (in Italy) Roman villas; others, lacking such buildings, constructed their own sham versions of these romantic structures. Such structures were often dubbed "[name of architect or builder]'s Folly", after the single individual who commissioned or designed the project. However, very few follies are completely without a practical purpose. Apart from their decorative aspect, many originally had a use which was lost later, such as hunting towers. Follies are misunderstood structures, according to The Folly Fellowship, a charity that exists to celebrate the history and splendour of these often neglected buildings.