Many cats enjoy climbing and perching from high spots. Providing tall cats trees and/or shelving can be a great way to provide exercise by encouraging climbing and also provide more space and options for cats to hang out and rest. For a multiple cat home, vertical space adds square footage and gives cats a chance to get away from one another. Cats enjoy viewing their territory form a high vantage point. All of my 5 cats love perching from high above.
We recently installed shelving (those white shelves pictured) for our cats that is accessible form the top of the bookshelves, which they access from a nearby cat tree. The next step is to connect the shelves around the corner to a shelving unit attached to our closet door (you can get a glimpse of that closet shelf from the right hand yellowish side of the picture). For now, as an alternate route, the cats can jump from the shelf onto our dining table. Only Josh, pictured below, is comfortable enough to jump to the shelf from the dining table.
Do you have vertical space for your cat? I'd love to see it. Email me: email@example.com.