National Trust, English Heritage, and Historic Scotland Sites (v2)
A few months ago, I made this map of National Trust, English Heritage, and Historic Scotland Sites using Google's fusion tables. However, I forgot to post them to my blog, so here they are. By clicking on the icons, you can pull up data about the historic property.
REVISION (6 January 2020): I have transferred the data from Google’s Fusion Tables to Google Maps. You can now view the sites via the Google Map in this post.