A Scottish Pineapple: J.K. Gillon's illustrated description and discussion of the inspiration for the Dunmore Pineapple garden folly, built in 1761.
Beckford's Tower: Built in 1827 for the accomplished but eccentric William Beckford, it is now a museum. The Bath Preservation Trust provides photographs, a brief history and description, and visitor information.
Follies and Monuments: Eccentric buildings built by British eccentrics. A photograph and description of each building arranged by county, or accessible via the clickable map.
Follies, Grottoes and Garden Buildings: Pavilions of Splendour defines a folly and provides illustrated descriptions of some examples.
Freston Tower: An illustrated introduction by Ed Broom to this six-story 16th-century building overlooking the River Orwell in Suffolk, with extracts about it from various guidebooks.
Hawkstone Park and Follies: The official site for this 18th-century garden with grottos and architectural oddities created in Shropshire, England, by Sir Rowland Hill. Photographs, brief history and visitor information.
John "Mad Jack" Fuller: Biography of this eccentric Georgian squire and MP, remembered for folly building, philanthropy and patronage of the arts and sciences. Includes photographs and descriptions of his follies.
Painswick Rococo Garden: Official site for this 18th-century garden dotted with follies. Photographs, description and visitor information.
Pharos Follies: David Matthews argues that some buildings meant to be lighthouses are actually follies. He also mentions some odd but functional lighthouses and mock-lighthouses. Discussion, photographs and map of locations.
Virtual Portmeirion: Online tours, hundreds of photographs and information about Portmeirion, North Wales, a picturesque village created by Sir Clough Williams-Ellis, including architectural follies.