Believe it or not the fastest route between home and our children's school is to navigate this long stairway at the hospital. It's also the quickest route to downtown. The two channels down the center are for bicycles. When the children were young the wheels on our double stroller coincidentally fit perfectly in the grooves.
Using the stairway comes naturally now, but passersby often make comments. "Ah, I've always wondered what those were for." And one day while we all were on foot, my son stopped at the top, pulled a super ball out of his pocket and started it rolling in the gutter, letting gravity do it's magic. I had to laugh. He ended up chasing it all over the place because beyond the bottom of the stairway there's a gradual downward slope.
Bicycles and cute bunnies. Does it get any better than this?