Severndroog Castle is an 18th-century Gothic tower folly nestled in the ancient woodland of Shooter's Hill in southeast London, standing 132 metres above sea level. Designed by Richard Jupp in 1784, the Grade II*-listed structure was built as a memorial to Commodore Sir William James by his widow, commemorating his naval victory over the Indian fortress of Suvarnadurg (which provides the castle's anglicised name). The distinctive building features a triangular tower with three hexagonal towers, each standing over 60 feet high and offering unobstructed panoramic views of Greater London, the Thames River, and surrounding counties. On its ground floor sits a tearoom serving refreshments, while the viewing platform provides visitors with spectacular vistas across the capital's sprawling landscape, making this hidden gem an accessible urban escape.