The Doughnut
"The Doughnut" is the nickname given to the headquarters of the Government Communications Headquarters (GCHQ), a British cryptography and intelligence agency. It is located on a site in Benhall, in the suburbs of Cheltenham, Gloucestershire, in South West England. The Doughnut houses 5,500 employees; GCHQ is the largest single employer in Gloucestershire. Built to modernise and consolidate GCHQ's multiple buildings in Cheltenham, The Doughnut was completed in 2003, and GCHQ moved into the building in 2004. It is the largest building constructed for secret intelligence operations outside the United States. The Doughnut was too small for the number of staff at its completion, and a second building in a secret and undisclosed location in the 'Gloucestershire area' now also accommodates staff from GCHQ. The Doughnut is surrounded by car and bicycle parking in concentric rings, and well protected by security.
Gloucestershire
Gloucestershire is a historic county mentioned in the "Anglo-Saxon Chronicle" in the 10th century, though the areas of Winchcombe and the Forest of Dean were not added until the late 11th century. Gloucestershire originally included Bristol, then a small town. The local rural community moved to the port city (as Bristol was to become), and Bristol's population growth accelerated during the industrial revolution. Bristol became a county in its own right, separate from Gloucestershire and Somerset in 1373. It later became part of the administrative County of Avon from 1974 to 1996.