The Rachofsky House is unique among art museums in that it's actually a private home serving as a venue for curated exhibits of minimalist, conceptual art. The home itself reflects an architectural minimalism that matches the art displayed within it, relying heavily on glass as a building material that allows the boundaries between indoors and outdoors to partially dissolve.
Much of the exhibited art comes from the private collection of homeowners Howard and Cindy Rachofsky, though the house never shows more that 10-15 percent of their collection at any given time, and also regularly features installations by visiting artists. All of this means that exhibits rotate fairly regularly, so if it's been a few months since you've visited, there's a good change that new art is on display.
It's important to note that because this is a private house, you must call ahead and make a reservation for your visit. Don’t hesitate to do so, however; Yelp reviewers say it's well worth it.