I mentioned we live in a "roundish" house. Well, it's actually 9-sided which is known as a nonagon (think pentagon w/ 4 addtl sides or an octagon w/ 1 extra thrown in for good measure). As I've read, the term "enneagon" is more appropriate, but I'll stick with something I can spell and pronounce.
Living in a gazebo presents a few challenges when it comes to arranging furniture. Several rooms are shaped like pie slices - larger at the outside and tapering in towards the interior. Makes it difficult when you don't have any 45 degree angles and you have a couple of corner cabinets... But the "great room" feel of the main interior, with the high cedar ceilings and the 9-sided skylight in the center, is really wonderful. Just don't expect much of an attic.