When the great folly builders of the 17th and 18th centuries were erecting statement buildings on the high points of their estates, they can little have known how useful they would be to the Board of Ordnance. The ‘Principal Triangulation of Britain’ was a trigonometric survey, begun in the late 18th century, which by determining precise coordinates of significant landmarks would enable highly accurate mapping. The main landmarks used were church spires, but ‘other remarkable objects’ were picked, and in the first decade of the 19th century over 50 towers, temples, obelisks, summer houses and follies made it into this category.
Bramham Park, south of Wetherby and close to the Great North Road as it passes through Yorkshire, was built by Robert Benson, Lord Bingley, and completed in the early years of the 18th century. The estate has remained in the care of his descendants (with a couple of confusing name changes) ever since. In 1828, while the family were away at a funeral, fire broke out in the mansion causing serious damage to the fabric of the building. Happily, the quick actions of the servants and neighbours meant that some of the contents could be saved. Less fortunately, there was no money available to rebuild, so the house remained a ruin throughout the rest of the century.