A Catio is the Coolest Thing You Never Knew Your Cat Needed | Apartment Therapy
Gimnasio con pallets
Something for the cats to play in.
Outdoor Cat Enclosure - it's gotta look nice and not too WT.
Outdoor cat enclosure with real tree cat tower... because I'm an overprotective crazy cat lady ;)
Michelle - Blog #Catio Fonte: http://gigazine.net/news/20081014_hebel_plus_cat/
Get idea for taking old furniture and turning it into a pet home, my idea is for ferrets!
outdoor tunnel system for your indoor cat: Top 20 Brilliant DIY Backyard Projects and Tips for Your Pets
10 Catios Your Cats Will Thank You For | The Blissful Bee