Well it is just cardboard boxes. Not exactly the next Taj Mahal, but the cat enjoys it. lol.

Early in the morning when she is all spunky, she runs the labyrinth from bottom to top and then sniffs the roof all crazy like and then runs back down, across the couch and flies to the top of the bookshelf on the other side of the room. Then repeats until morning energy is depleted. lol