Not all English Heritage properties are open yet, and those that are require pre-booking via their website.
If you, or any of your party have a new persistant cough, or develop a fever of 38C, we would instead advise you to use the NHS's dedicated website for professional advice.
The remains of one of the first Augustinian priories in England, founded about 1100.
An impressive example of early Norman architecture, built in flint and reused Roman brick, the church displays massive circular pillars and round arches and an elaborate west front.
Later badly damaged by cannon fire during the Civil War siege of 1648.