Finally, a photo that really helps me understand and picture how I can build a 2nd story for my piggies!! I like how yours has the ramp not right on the perimeter, so your piggies can run laps around the perimeter. And, I love how you have your 2nd level on the back of the cage, and not the left or right side. I think I'm going to put my 2nd story on the back, and have the ramp in the middle so my cavies can run their laps around the perimeter!!
