Designed from sprightlyinnovations.com/leafandleisure/wp-content/uploads/2013/05/EssenceDrawing.jpg I tweeted to Serina Patterson who is Ph.D. Candidate from the English Department of at the University of British Columbia. As far as she knew, this drawing is free. However, many versions are available worldwide.
沙特爾大教堂迷宮
cathedral、Chartres、labyrinth、maze
大教堂、沙特爾、迷宮、迷宮
資料來源：openclipart ( https://openclipart.org/ )