Painshill (formally Painshill Park) is a restored, 18th-century English park and landscape garden in Cobham, Surrey, England. It was created between 1738 and 1773 by the owner, Charles Hamilton, from an area of heathland and woodland. Painshill is laid out as a series of scenes, crafted by combining architectural features with trees and shrubs, many of which are non-native species. Several of the surviving follies are listed in their own right, including the Gothic Tower, at the western end of the park, and the Gothic Temple, which overlooks the northern part of the lake. The Grotto, the largest in England, is decorated with crystalline mineral stones, including quartz, feldspar and Blue John.
In designing Painshill, Hamilton was influenced by 17th-century landscape artists, whose works he had encountered on Grand Tours in continental Europe. Instead of trying to replicate specific artworks, Hamilton used the techniques of landscape painting to create scenes with contrasting emotional tones – from the solemnity of the dark evergreens surrounding the Mausoleum, to the brighter trees and flowers at the Temple of Bacchus. Advocates of the Picturesque were complimentary of Hamilton's work, particularly the hillier, western half of the park, which Horace Walpole likened to a "kind of Alpine scene". International visitors to the park and garden included John Adams, the future American president, who wrote that "Paines Hill is the most striking piece of art that I have yet seen."