During the tour of Frank Lloyd Wright’s house “Kentucky Knob” in Western Pennsylvania, I was anxious to take photographs of the interior. I was disappointed to find NO photographs were allowed inside. So I took one single photo from the outside balcony through the open door into the den off of the kitchen. There was a triangular and hexagonal theme here. The furniture appeared original and the floor was covered by the large flagstones.
There is always a loophole.