I live in a circular house. Well actually it's a dodecagon (12-sided). When we were building it, the kids HAD to know what a 12 sided structure is called, so we looked it up.
Why don't we see more round dwellings? It takes a bit of thinking outside the box (pun intended) to come up with a good design for the interior rooms in a circular building. But there are some great designs out there. Circular homes are perfect for you if you like open floor plans and efficient use of space.