Get yourself down to The Samuel Peto in Folkestone then Roger. It's a JDW built inside an old church. You can see the old organ above the bar, although it's not as impressive as I imagine it once was. The upper level is very impressive on a sunny day as a lot of the old stained glass windows have been retained/reproduced. Not a great pub in the evening when the local kids take over but OK during the day for a pint and a mooch around.
Or there's this one, The Frankenstein Pub in Edinburgh where the facade is still that of the church and the pulpit can still be seen. Seems my 2003 review is still the only one. I was quite proud of that one, first and only time I've used the word juxtaposition in a review