A unique house for sale in Waltham could appeal to math lovers, natural wood enthusiasts, and anyone who loves unusual spaces.

I've always wanted to see inside one of these geometric domes. There was one not far from where I live and I always imagined that it looked like a tent inside. Living in one must be 'roughing it,' I thought. But then I saw the listing on realtor.com for this geometric dome for sale at 970 Waltham Road in Waltham. It's anything but rough. Instead, it's a beautiful home that celebrates the warmth of natural wood and functionality of an open concept, while not being the single-big-room that I expected.

If you're not familiar with Waltham, it's in Hancock County, near Otis, with Graham Lake on one side and Eastbrook on the other. This home is located in a rural area, with a couple of neighbors across the road and lots of beautiful woods on the other side.

The first thing that struck me about this home, listed on realtor.com by Tashia Porter with Better Homes and Gardens/the Masiello Group, is the ceiling. Imagine the work that went into lining the space with finished wood. It's impressive and lends an air of natural beauty to the entire home. Three bedrooms, plus two-and-a-half baths, on a 1-acre lot, this unique house is listed at $449,000. As Porter says in the listing, it would make a wonderful home or an investment as an airbnb for people visiting the Downeast region.

Check out the stunning interior. And don't worry...there won't be a geometry test at the end. What IS the square of the hypotenuse, anyway?