The site looks very nice and it has a good domain name.
I am also not a big fan of tags or large numbers of links on a page. Too many links makes a site look confusing and dilutes the effectiveness of inheritance factors that you want to pass to the inner pages. There are over 160 links on the home page. From my viewpoint, anything over 50 is probably too many. I've seen too many sites with inner pages that never rank well due to an overuse of links in the internal linking structure.
Doing a castle tour of the UK is actually on my bucket list. I did that several years ago in Germany and really enjoyed it. When I get the chance to fulfill the UK goal on my list, I will use your site as a reference.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin