I've found every Pixar movie enjoyable, some more than others. Up blew me away: a movie that works as an adventure for kids, and as ... well, I'm not sure exactly what it does for, or to, grown-ups. Part fantasy, part meditatation on aging, part envelope-pusher for animation.
As this post in Paste explains, National Geographic recreated Carl's floating house for an upcoming television series, to air in the fall. Check out the gallery: I'm intrigued.