Killerton's an 18th-century house in Broadclyst, Exeter, Devon, England, which, with its hillside garden and estate, has been owned by the National Trust since 1944 and's open to the public. The estate covers some 25 square kilometres (6100 acres). Included in the Estate's a steep wooded hillside with the remains of an Iron Age Hill fort on top of it, also known as Dolbury which has also yielded evidence of Roman occupation, thought to be a possible fort or marching camp within the Hill fort.… (More on Killerton)