I found a site for what looks like a real Bed and Breakfast called Schrute Farms in Pennsylvania, but the picture of the barn looks a lot like Dwight's barn on the show, so there is a good chance it is a fake. Also, it's not that funny. What is funnier by a lot is this Dwight Schrute soundboard I found http://www.jellostapler.com/the-office-soundboard/dwight-schrute-soundboard.html/
Dwight is a great character. I had a friend I would play AD&D and Car Wars ( http://www.sjgames.com/car-wars/) with in high school with who was a lot like him. I am hoping he publishes The Tau of Dwight, but for now must settle for his blog http://www.nbc.com/The_Office/dwights-blog
All prices are in USD.