The earliest surviving parts of this relatively small cathedral are the retrochoir at the eastern end, which contains four chapels and was part of the 13th-century Priory of St Mary Overie, some ancient arcading by the southwest door and an arch that dates to the original Norman church. But most of the cathedral is Victorian. Inside there are monuments galore, including a Shakespeare memorial. Visiting may be restricted due to events, so check the website for details.
Catch evensong at 5.30pm on weekdays, 4pm on Saturdays and 3pm on Sundays. Do also hunt down the exceedingly fine Elizabethan sideboard in the north transept.