Really fun/educational place and tour! This was a very special experience, and despite the long drive from virtually anywhere you're coming from, I think this is a bucket list thing to do.
Overview - Fallingwater is a 1930s Frank Lloyd Wright-designed weekend home for the Kaufmann family. You buy tickets online and choose a time slot to show up for. Tickets are $25 - I think they are a dollar or two more if you buy on-site, and you probably don't have as much flexibility to pick your time if you don't book in advance.
Logistics - the tour itself is very well-organized. On the day of your visit, your tickets will correspond to a group number. Each group, which I think is limited in size to 14 people, is released every six minutes starting from the hour that you signed up for. AKA, if you bought a 2pm ticket, you will be placed in 14-member size groups that are actually released at 2, 2:06, 2:12, etc. This prevents overcrowding both within and between groups as you go through the house. AND, it also means that if you show up a little late, it'll probably be okay since you'll just be put in a later group within the hour you signed up for.
The house and tour - so, so cool. Our group had plebs like me and an architect, and I think we all found ways to appreciate the house. Not only does it look strange and beautiful, but thanks to our knowledgable tour guide, I had so much fun learning about the way that art and practicality are married in this structure. My favorite aspects were - the custom desks that were built to allow windows to open without taking up more space in the room, the fact that the entire house is balanced on a boulder, the way FLW incorporated the family's favorite sunning spot into the interior of the house, and the frogs in the swimming pool (which were not part of a design but they're kind of adorable).
Some policies to know - They are really strict about certain things since they want to preserve the house well. That means that there's no photography inside the house, only of the exterior. In addition, our tour guide, while very nice and knowledgable, was super anal. Obviously you can't touch any furniture but you also can't bring backpacks/purses bc they might accidentally touch something. Also, water is a big deal. It was raining the day we went, and I have to admit it was kind of hilarious to watch our tour guide, a sweet old lady, freak out at us when we went on the balcony because water might drop from our jackets onto to the furniture when we came back in. (To that end, they do provide many umbrellas.) She also would comment on the water damage super sniffily in certain rooms - very adorable in its own way.
The schtick at the end - the only reason why I withhold the 5th star is the awkward PBS special at the end. Your tour guide walks you over to the Kaufmann's converted car garage, and hands you off to another sweet old lady that was probably picked bc her face is hard to say no to. At this point, you will be feeling happy bc you just walked around a 5,000+ sq foot house and were not allowed to sit or touch anything the whole time, and finally finally finally they have these soft comfy looking couches where yes, YOU CAN SIT AND TOUCH. But of course that's so you watch this video that asks you for a donation at the end. It's very guilt-trippy and I would say just try to avoid eye contact and enjoy the seats.
Also, random last note - they have a few other sites at the visitor's center that I think are all really worth visiting. There's this small gallery devoted to the Kaufmann's other houses, which were designed by other architects. It's short and sweet, and kind of fun to see other styles even though you're on a FLW site. There's also a cafe with hot food. A bit overpriced, but it could definitely be worse. Finally, the gift shop actually has a ton of interesting things so I would take some time to go through that. read more