This link above will take you to a page on The Labyrinth Society that Jeff Saward and I originally had on Mid-Atlantic Geomancy that gave/gives examples of many different types of labyrinths. When/if you click on the above link, it will take you to a new window on your browser. After you've checked the different types out, please return to MAG, and continue your journey through these Earth Mysteries.
Incidentally, The Labyrinth Society is an international society dedicated to spreading the word about these ancient single-path magical tools. You might consider joining. Go to < http://labyrinthsociety.org>.