Some people would do anything for their cats. DIYer Brad Stone
of Dallas, Texas, wanted to give his two felines a fenced-in place to play in the yard, so he built a 17-foot-long run on the side of his house. The cat run was nice, but a few years later Stone decided his kitties needed more space. So he built a larger cat enclosure (shown) in his backyard, which is 15 feet wide, 24 feet long, and a little over 6 feet tall, and connected it to the original structure. The enclosure features shelves, posts, and stairs for the cats to scratch and climb on, as well as hooks for Stone to hang a hammock from and chill with his pampered felines.