If you're back at work or studies but already planning your next holiday you could do worse than look at Emily Temple's thoughts and picture of the 20 most beautiful bookstores.
The nearest one is
Alnwick (though they could have possible considered the
Waterstones in Bradford for a UK contender, or the
Mill Bookshop in Saltaire...: ). Anyway, the photos are beautiful...
See
http://flavorwire.com/254434/the-20-most-beautiful-bookstores-in-the-world/