Hmm. I've just found the site at  http://www.nerdydaytrips.com/ - it essentially lists very Wikipedian places to visit all around the UK. Very useful!

Richard Symonds
Office & Development Manager  
Wikimedia UK
0207 065 0992
07885 764 613

Wikimedia UK is the operating name of Wiki UK Limited, a Company Limited by Guarantee registered in England and Wales, Registered No. 6741827. Registered Charity No.1144513. Registered Office 4th Floor, Development House,  56-64 Leonard Street, London EC2A 4LT. United Kingdom.
Wikimedia UK is the UK chapter of the Wikimedia Foundation (who operate Wikipedia, amongst other projects). It is an independent non-profit organization with no legal control over Wikipedia nor responsibility for its contents.

Visit http://www.wikimedia.org.uk/ and @wikimediauk