On Saturday, S and I went to Taliesin West. We opted for the less-involved tour, which, because the tour guide was very enthusiastic, turned out to be an hour and 15 minutes rather than an hour.
Notable things: natural/rustic rock-in-cement construction, open-space windows that were only eventually replaced with glass, the roofs were originally canvas & are now some kind of fancy canvas between fiberglass (?) layers. Also, lots of art/performance space.