The Cathedral Church of the Holy and Undivided Trinity, otherwise called Carlisle Cathedral, is the seat of the Anglican Bishop of Carlisle. It is located in Carlisle, in Cumbria, North West England. It was founded as an Augustinian monastery and became a cathedral in 1133.
Carlisle, because of heavy losses to its fabric, is the second smallest (after Oxford), of England's ancient cathedrals. Its notable features include some fine figurative stone carving, a set of medieval choir stalls and the largest window in the Flowing Decorated Gothic style in England.
Carlisle Cathedral was commenced in 1123 as a monastic church, possibly on the foundations of an earlier church, in the Norman architectural style with solid masonry, large round piers, round arches and smallish round headed windows. These features may still be seen in the south transept and the remaining two bays of the nave, which are now used as the Chapel of the Border Regiment. The stone is the local Red Sandstone which has discoloured almost to black on parts of the exterior. The building has also suffered from subsidence which is evidenced by the piers, which lean at different angles.
Source & More Information: Wikipedia, Carlisle Cathedral, http://en.wikipedia.org/wiki/Carlisle_Cathedral