A county with an area of around 3,485 km². It is landlocked and borders the counties of Dorset, Somerset, Hampshire, Gloucestershire, Oxfordshire, and Berkshire.

Wiltshire is characterised by its high downland and wide valleys. Salisbury Plain is noted for being the location of the Stonehenge and Avebury stone circles and other ancient landmarks, and as a training area for the British Army.

The city of Salisbury is notable for its medieval cathedral. Important country houses open to the public include Longleat, near Warminster, and the National Trust’s Stourhead, near Mere. It is a UNESCO Cultural and World Heritage site.