This cathedral charges for entry, but it would be a shame to miss it if you are in the vicinity, as it is one of England's best - which is saying a lot.
Everything seen on first entry is Norman [Romanesque] though the Lantern from the Decorated period can be discerned at the far end of the nave.
The prolongation from the nave onwards was originally all Early English [Early Gothic] but when the central tower fell in the 14th century, it was replaced by the Decorated [Middle Gothic] lantern.
The wood carving in the choir, whereas not the very best I have seen, is well worth some time.