Jack London's House of Happy Walls
Jack London, who famously wrote the book Call of the Wild, bought an abandoned vinyard near the California coast just north of the San Francisco Bay area in 1905.
Shortly thereafter Jack spent up almost all of his money having a 15,000 square foot stone dream home for he and his wife constructed. They called it the Wolf House and just before they moved in to the completed masterpiece somebody torched it.
The ruins exist, mostly just parts of the walls. Jack wasn't in good health at this point in his life due to debilitating alcoholism and this event took it out of him as one might imagine.
So then with whatever money he had left he had a smaller stone home built they called House of Happy Walls which stands to this day and is shown in the photo I shared.
The property became a state park and I hope to one day visit.
This video shows the interior: https://youtu.be/XxUCeMsWguI