Places featured in some paintings exist in our world and you can actually visit them.
The process of creating art is very complex, but sometimes, something that catches the artist's eyes can be a house with nothing special, a beautiful landscape, or someone that brings that glimpse of inspiration to make a painting. I think it is fascinating to see how the artists' world can be more beautiful and magical than ours. Here you can see the actual place and the place in the artist's mind.
American Gothic, Grant Wood.