“The main house on the estate was a 32-room mansion, and Wright had three artificial lakes constructed, the 9,000+ acres lavishly landscaped and reeking of wealth and means. Perhaps the most famous addition to the palatial properties was the underground conservatory/smoking room with aquarium windows, an epic statue seemingly rising out of the manufactured lake on the underwater dome that gave the glorious below-ground room a ballroom-like appearance.”  Read more:  Witley Wonder Underwater Ballroom | Atlas Obscura.