Take bookcase & cut holes in between interior sides and you have a cat condo. This could also double as a room divider.
Cat playing Portal :) Wow, I keep looking at commercial cat trees, but I bet they'd like this just as well, if not better!
New Cat Tree 47" Kitten Condo Play Furniture Scratching Post Pet House Black | eBay
"I thought the birds liked this thing. When I was watching it from the window, they were all over it. Now, nothing!"
enfin un arbre à chat qui embellit le salon !!! http://www.kratzbaum-city.de/images/Fotosammlung3/01.jpg
woodsy cat trees …
repurposed furniture ideas | Repurposing Vintage Suitcases - So Many Ideas! - ... | Furniture Redo ...
The crazy cat lady organizer.
So many of my UK friends have Catios and their cats absolutely adore them. Would your fur-person like a little outdoors time?
the cats would love this cat tree