St. Aidan's Episcopal Church in Alexandria, VA, has both a large outdoor labyrinth and a small indoor labyrinth painted on the floor at the back of the sanctuary. The 40-foot outdoor labyrinth paths are rubber mulch (like playgrounds use) over ground cloth, with white stones outlining the path. As I walked, I felt the energy of many hands and much care that went into building it. The Worldwide Labyrinth Locator says it was completed September 2012.
The natural site is echoed inside the sanctuary where the walls are rough hewn wood. I almost missed the small labyrinth painted on the floor at the back, because it was covered with chairs. The St. Aidan's web site, though, has a wonderful photograph of a confirmation class meeting in the middle of this sacred space.