Noah's Shelf

My son is three and loves animals. His collection of animals keeps growing. They were originally sitting on his toy chest. This made things difficult because we could not use his toy chest storage. He liked having all his animals lined up. So I thought I would build him some shelves. But something cool and fun for a little boy with a growing animal collection. So I set out to build the Noah's ark. It didn't take me a hundred years but I kind of know how Noah felt because we messed up and had to rebuild. There was supposed to be sides with a drop down bridge so he could load his animals on to the arc. It was supposed to be attached by hinges and have a latch to hold it up. My husband and I are beginners at cutting wood and were unable to make the proper cuts. So we decided to go without sides. If anyone does this arc with the drop down side please let me know. I would love to see it like I originally imagined it. I first set out to make it 4 feet long but after building it and messing up some of our wood; I thought my son will need a bigger arc. The final product is 5feet long at the top and 3 feet at the base. I used 6 inch wide base because we have baseboards close to that wide. The shelf width is 10 inch. I would recommend attaching to a wall. I used some left over railings I had from another project. You can buy them at a hardware store. I was going to stain it but did not have the time. So we painted it. I used dowel rods for the roof and glued them on.