True, these folks are looking to swap their extraordinary dome home near New Paltz, NY for Hawaii, France or India (I take it they wouldn’t be interested in my Park Slope fourth-floor walkup), but if you have something particularly great to offer in the city, perhaps they’ll swap with you. It has three beds, two baths and amazing curved furniture to accommodate it. And, get this: it rotates to face (or turn away from) the sun. Turns out the place has been written up a bunch of times, most notably on a site called New York House, which I think our readers would appreciate — lots of great green info there. And here’s a video on the place, too. I envy those who get to spend some time here. Three beds, two baths, almost 2,500 square feet and spectacular outdoor space, replete with outdoor hottub.