I have just finished a wonderful novel, While We Were Watching Downton Abbey by Wendy Wax. It is a super read and I recommend it. (My review is on Goodreads).
After I finished reading, it occurred to me that as I lived near, and often visited Highclere Castle (Downton) when I lived in England, there must be numerous novels sited in actual places, rather than fictional ones. I have used my road trips the length and breath of England, Wales, Scotland and a portion of Canada to create locations in my books.
Knowing a place you are reading about is exciting as you can picture it exactly, and spot any errors, truth be told, as well. Of course, in the TV series of Downton the locations are many and not related to the fictional area at all in many cases. Here is a list of locations, many are far apart from each other! Link: That is the magic of TV & movies.
I used my many visits to castles, historic houses and ancient sites in my medieval novellas, The Rython Kingdom and Rython Legacy. Experiencing a place makes the narrative even more compelling and real to write about, and I hope that comes across in the stories.

For my speculative fiction novel, Life in Slake Patch, I used the enormity of a Canadian prairie as the setting for the male compound. Mountains are seen in the far distance, just like we see when driving west on the Yellowhead, but the concrete jungle is no longer in existence in my story.

What books have you read where you have known the location? Did it ring true? DId you find errors, or notice author’s license to fictionalize it?