The Wantage constituency covers the south-western part of Oxfordshire. There are three market towns in the constituency: Faringdon, Wallingford and Wantage. All have tourist attractions, Wantage having monuments to being the birthplace of King Alfred the Great, Wallingford, ancient enclosure walls of a castle and a medieval bridge. Faringdon bears a scar of the English Civil War as its church lost its steeple. The largest town in the constituency is Didcot, which grew up around the Great Western Railway when Isambard Kingdom Brunel built a branch line from its main line between London and Bristol to Oxford, siting the junction at the then-sparsely-populated parish and it has a power station and many major national construction and aggregate industries.