Banner House from the Lake, by UNKNOWN
This is from way before my time, though an interesting shot. Now, the boathouse, and tennis court opposite the road are gone, and, sadly, the hotel is falling down slowly as inertia creeps along, giving way to entropy.
That's a great piece of history. Photos like these are interesting to everyone; those that remember that time as well as those that only know its present. The details like the car in the background really help to put the timeline into perspective.