We did the 90 minute Insights Tour with another couple in from St. Louis. He is in the building/remodeling business, so was interested in the architectural aspects. Both wives had agreed to come along and ended up enjoying the tour immensely. The architecture is just one component of this location. Molly, our tour guide was very knowledgeable and threw in many interesting facts and cultural aspects. It was amazing to see how far ahead of his time Frank Lloyd Wright actually was!